Asking Permission to Park at a WalmartThe policy of Walmart welcomes RVers to spend a night in their parking lot, as long as you have the individual location's permission.
Free RV camping in Florida can be found at dispersed campsites in national forests and some public lands, in addition to Walmart parking lots, Cracker Barrel parking lots, and some rest areas along highways.
In the state of Florida, there is a three-hour parking limit at most lots and rest stops with no overnight stays. Highway shoulders are illegal to park on at all, and police can write you up for a DUI if they catch you sleeping in your car in some places.