Walmart as a company is generally friendly to both truckers and "vandwellers" who use their lot for overnight parking. The only exceptions I've seen are smaller

Walmart as a company is generally friendly to both truckers and "vandwellers" who use their lot for overnight parking. The only exceptions I've seen are smaller "neighborhood Walmart" locations and the occasional small town where the cops have nothing to do all night except harass overnight truckers and mobile home/van drivers.