Here is the Walmart website FAQ;
Can I park my RV at a Walmart store?
While we do not offer electrical service or accommodations typically necessary for RV customers, Walmart values RV travelers and considers them among our best customers. Consequently, we do permit RV parking on our store parking lots as we are able. Permission to park is extended by individual store managers, based on availability of parking space and local laws. Please contact management in each store to ensure accommodations before parking your RV.
Follow Walmart's guideline and ignore what anyone on here or elsewhere claims. Only Walmart controls Walmart's property. I really tire of all the self proclaimed Walmart parking police making up their own rules and imposing those rules on others.
