The above 100% accurate as could be about that line.
The best part is that security does nothing. When I brought this up to the manager of the box office, the guy said he has no control over the line and that security doesn't either. Why post a guy out there then!? Next the manager said that we have to police ourselves out there. So I asked him then if he can give me some form of recorded permission that I can do such a thing and if it ends up in violence then I have something to prove that I was within my right by the manager of the Prudential Center box office that I could do such a thing. The guy just stared at me wide-eyed and then backtracked saying to go to the security guard and thus contradicting what he said before to me.
I have sworn off the box office and the money I have to spend extra is peanuts compared to the aggravation and time I could have spent there with the rest of the trash in that line.