Yep, I'd have knocked on the Captain's cockpit door getting him front in center ordering the man off his plane. I wouldn't let him hide. His plane his responsibility.
I spoke of it yesterday how to handle this situation that would not have hit the nightly news.
http://freerepublic.com/focus/news/3543196/posts?page=48#48
He's not the innocent victim some make him out to be, and a lot of emotional feeeeeelzs going around.
I just read your idea. That is sage advice that the Security Officers would have been wise to follow. Regrettably, they did not. As a result, they could be in serious trouble with the Law.