How many nights in a row can you park in a Walmart parking lot...72 hours? We need to find a place to leave our car for 3 nights (preferably free) safe from vandalism.

I think you can leave it for a night or so but as far vandalism and stuff That's a risk your gonna take, i wouldn't trust it... Theres alot of homeless around there

You need to ask mgmt 1st, they will then inform loss prevention that you are staying in the parking lot. You need to do this as each city has ordinances that apply for camping out (staying overnight) in your vehicle. Just give a call for clearance, guidelines.