Goodness that is awful. Before I left, I was in charge of the Attendants Scheduling and we had 2 always in the lobby and we walked anyone leaving early to their vehicle. Maybe it was a deterrent, however we were unarmed and basically defenseless.
Now that I am out and I have exercised my 2nd amendment rights :-) I will promise you that an attempted assault will result in a hole in their glabella.
What I hate is this as some have commented already, result in a strengthening of the persecution complex even though several american churches have had far worse happen.