See my initial post.
You're one of those "pains-in-the-butt." If I were a retailer, I would ask you to leave and never shop in my store again.
If you don't like my policies, don't shop in my store. "We reserve the right to refuse service to anyone."
That didn't work for Lestor Maddox (later governor) in Atlanta, Georgia, years ago at his chicken resturant, because the feds found out-of-state license plates on cars in the parking lot and said he was engaging in interstate commerce.
Fair enough.
P.S. However, what we are discussing is taking place after the store has already accepted the customer's buisness.