"A couple of Pi Kappa Alpha (Pike) brothers guarded the doors."

What would have happened if you had tried to go past these guards? Would they have said, "Oh damn, well, he really wanted to go in, guess we'll all have to take the test"? Or would they have restrained you? (which may be considered battery or possibly false imprisonment)

This could have very easily turned into a lawsuit or a criminal case if any student had decided to take the test.