I am very sorry you encountered such a thing, CGE. It is a shameful thing, and you would think that security was aware of it and the university would do something about it.
But this is the society we live in today. No morals, no principles, no sense of decency, and a willingness to impose it on everyone who will take it off of them. Worse, is that these people are cowards. If they were faced with real resistance they would scatter like a flock of birds from a cat (or eagle), and then gather and whine that they were mistreated.
I am very sorry for your experience. I am sorry for you, them, and all of us. Lord, God protect us that we do not need this generation to fight a war.
Thanks for the "heads up".