A patron is a customer, not an employee….
I think it is more on protecting customers….a precaution: rival gangs can be out for revenge, and we cannot predict their actions….
Temporary policy, not a long-standing policy…
Unless, the man was obviously a cleric in cassock, wearing a cross, and they asked the cross necklace to tucked it in… that will be different story…
…. bars have french fries and burgers as well : )
Oh, I got confused because in my native language patron means something similar to foreman. On the other hand, since when are crosses a criminal symbol? I wouldn't hide my cross either and I would complaint if I am kicked out because of it.