Yes! Let me read you this so you feel more confident. All walmarts must allow tractor trailers to park upto 24 hours if it does not impede the normal flow of business. No manager can change that policy unless there is a city ordinance banning truck parking. Sam walton supported drivers enough to make it part of the "obligations" of a store managers job.
I've seen some 18 wheelers there parked before when I go late at night (midnight) but honestly I don't know.
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