I asked the same thing, the answer I got was so they could clean and to help prevent theft.
They really aren't supposed to be closed. I have been in the middle of the night when the aisles are packed and they are restocking and there's no way they should close for theft. There should have been a sign up why they were closed. Could have been a lack of employees to help at the time
But for all the positive people that gave me a good answer thank you but I've been to that Walmart many of times at that time and they were never close that's the only reason why I was asking thanks
Good question.
I don't know either
Theft
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