I am on your side as a Deuce owner. I am also a lawyer. I am sure that your and your lawyer have prepared a good case and I wish you good luck. With due deference to your lawyer, I offer the following as a fellow Deuce owner:
Your post appears to indicate that you were cited under 302.1 (1) and (2) and maybe (3). The section you referenced regarding the use of recreational vehicles does not apprear to be applicable. This is about unenclosed storage/parking of a truck not riding recreational vehicles like quads or snowmobiles on your property. It is not clear exactly what they say you are doing in violation of the cited provision.
Section 302 Unenclosed Storage and/or Parking
302.1.Recreational Vehicles, Boats, Campers, Trailers and Trucks - Within any (R-1, R-2 and CO) Zones, the storage of recreational vehicles, travel trailers, trucks, boats, and trailers used solely for the transport of the residents' recreational vehicle(s) is permitted only according to the following requirements:
1.The parking of such vehicles (up to 72 hours per week) is permitted in any yard, so long as the vehicle is set back no less than ten feet (10') from any street right-of-way, and six feet (6') from adjoining property lines;
(A deuce is not an RV, the term is not defined above and the common usage is not a deuce, despite the definition provided in the other ordinance you linked to. A duece is a truck and that is hard to argue, but maybe the term is vague as to whether they mean all trucks or commercial trucks or dump trucks or other.)
2.The storage of one (1) vehicle shall be permitted per lot behind the building setback line, so long as the unit is set back no less than six feet (6') from any adjoining lot line. All areas used for the storage of vehicles shall be maintained so as to keep vegetation properly trimmed and debris or litter disposed of regularly. All vehicles shall maintain required licensure and prevent the leakage of fuels and/or lubricants into the ground; and,
(If you were cited for not having a valid registration and tag, prove it was registered at the time the citation was issued. If you were parking in accordance with this section, you should be prepared to prove it.)
3.In the R-1, R-2 and CO Zones, truck tractors and/or trailers, construction equipment, including, but not limited to, backhoes, dump trucks over 12,000 GVW, cranes and forklifts, and school buses (excluding vans) shall not be parked or stored on or off a public or private street or highway. The parking of such commercial vehicles off a public or private street or highway shall not apply to lots with a gross lot area of one (1) acre or greater; however, in no case shall such commercial vehicles be parked within two hundred feet (200') of any adjoining residentially-zoned property. This section shall not apply to local deliveries, loading or unloading, or construction equipment used at a construction job site. When loading or unloading, said vehicles shall not be permitted to have their engines, generators or refrigeration units of any sort in operation for a period exceeding a total of thirty (30) minutes in any twenty-four (24) hour period. Truck tractors and/or trailers used for residential moving purposes shall be permitted to park for periods not to exceed twenty-four (24) hours. This section shall not apply to farm vehicles not normally used as a means of conveyance on a public highway.
1 and 2 appear to apply to parking on your property. It looks like under 2 you are allowed to park without a time limit if you are behind the building setback line and more than 6' from the property lines, otherwise 1 limits you to only 72 hours and you still need to be more than 10' outside the right-of-way and more than 6' of a property line.
Are you parking on the street like in your interview? If so the cited provisions 1 and 2 do not appear to apply.
If they are citing you under 3 you could argue that the deuce is not a truck tractor or a dump truck so that the provision does not apply. Show what a truck tractor is and a dump truck. If a passenger car or light truck can park on the street, you should be able to park your deuce as well, particularly as it is not registered as a commercial weight truck per se. Your Deuce may be of a "commercial" weight class, but it is not registered as such. I have seen some townships and HOAs bascially treat a one ton dually as a commercial truck and constrain a residents right to park it outside as such. You may be getting cought up in that type of situation.
Erie makes me insure my Decue and F-450 dump trucks as "commercial vehicles" at about $300 per year, despite the fact that they are registered as an antique and a farm truck, respectively and neither have a weight registration.
Stick to the issues and facts, keep cool like in your interview and beat the Township down.