To enforce these rules in exit check situations, Walmart needs a written and reasonable set of rules with the employee's signature at the bottom. For what they wanted an acceptable rule would be: Do not stand in anyone's way. Ask for receipt, if ignored, DO NOTHING. Wait til it is safe for everyone, then contact loss control and inform them.
I'm pretty sure Walmart can't produce such a document.
Hopefully the locals will loot the store til upper management gets tired of the store manager.
I think this is an upper management policy. We had the same thing (dont stop anyone) here in a Dallas suburb.