Honestly you can but not in front of the store you have to park on lawn and garden side.
The best thing to do is to call the store to find out if anything like that is allowed. Don't want to be sleeping in the parking lot overnight only to be awoken by the police. That would not be good for anyone!
It does seem like some people do park on the garden side parking lot & sleep there. But still might want to check to make sure it's ok w/ them. Don't want to be getting fined.
How about a local RV park instead?
They used to. I would call to be sure
Best to call Wal-Mart. I'm a customer not an owner
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