Allstays Walmart Excellent for built up areas or cities, oftentimes if you aren’t in a huge RV they will most likely allow you to stay over night. It’s best to check with the store manager on arrival or call ahead and ask. Also shows Camping World stores, which will also allow overnight parking and camping in a vehicle. California is more problematic when you are looking for overnight, legitimate parking; this is when you have to get creative! Walmart doesn’t provide the best nights sleep, however it is better than paying for parking and a hostel.
Tip: If you don’t want to buy the app, information is available on the Allstays website