“I just drove through the parking lot and saw a lot of bikes with a couple of guards monitoring the parking lot.”
That seems to be what happened in Waco. The Bandidos were upset that the Cossacks had invaded and started a row with a Cossack guard.
From my experience that is the rule at TP restaurants. Even that I noticed it is surprising but it really stood out but makes perfect sense, where else would a biker rather be but hanging with his buddies watching boobies and drinking beer.