Paul and StormLion1 are both correct. Paul is right because he reminded me of the time frame involved, Stormlion because IF RV caravan is going, parts do become an issue. That will teach me to post while indulging in an adult beverage.
How about this? The caravan starts during/right after TDM? That fits more into the Independance Day scenario, the govts have not absconded with anything left over, parts are still available, gas is somewhat available (power for gas pumps comes to mind), criminals are still reeling from TDM as much as anyone. There, that might cover it?
My $0.02
Mike