Do you just leave it and go?

I park at Walmart for a few hours rest, not as a home base for seeing the sights or going out to dinner. The only eating I do while parking at Walmart is usually something from their deli department, a stop I make while stopping for provisions at their store. I figure my patronage is only fair as they are providing a place for a few hours off the road, free of charge.

If I want to check out the sights, enjoy a restaurant that is not adjacent to Walmart, or anything other than restocking or getting needed rest for a short time, I find a campground.