I've OCed in the Hammond Wally world on one other occasion with no problems. I'll be on the way to the same Wally World shortly and plan to OC this time. Will report back if I have any issues.
My wife has had issues with the receipt Nazis at the door on random occasions, but only when it's one of the 2 old black women working the door. She always refuses and on one occasion the TPSO deputy working the detail spoke with my wife and asked for her receipt. My wife being the freedom loving gal she is asked if she was required by law to show her receipt and he replied that she was not, so she politely said that she did not want to show her receipt. The deputy nodded and left and nothing more was said or done.