We had a law in Alabama that said that every store had to keep a bathroom open to the public. So, I had a child that had to go, so I pulled into a service station, and the poor English speaking person behind the counter said that I had to buy something. When I explained the law, with my child standing there crying, they told me to call the police then. I just dropped a dollar on the counter and grabbed the key myself... with a spattering of words I don't understand coming at me like a machine gun.
When I came back, I told them, "Call the police then."
There are rules, laws, and common decency.