As far as Kentucky goes if you're just passing through there isn't a restriction. If you're visiting from out of state you have to self quarantine for 14 days. It looks like the rest of the states you will be going through are the same, not sure on the self quarantine in the other states.
The only concern I see is if you have to stop overnight, you might be limited to rest area or Walmart parking lot. Several years ago we pulled from Ft Meyers beach and stopped for a few days at Lookout Mountain/Chattanooga West Koa. They are currently open and on the Georgia line, its actually in Georgia. The next Koa up the road in Tennessee is closed.
Hope this helps