My suggestion to do now, and from here on out, would be to drain the air tanks very frequently. Your air dryer is going to be working overtime with all the humidity.
In times of disaster it's hard not to be the victim. It's an even larger feat to help others at the same time. I've been in your shoes many times over the years, making myself and everything at my disposal available to folks in desperate need of help. You're doing a good thing.
When the huge maintenance undertaking begins, and the postal service is back up and running, send me your address in a PM and I'll send you an MRAP air dryer upgrade to replace your current one. From one Good Ol' Boy to another...
Stay safe.