OK, what do we know?
Evidently the kid was actually using the computer legally but didn't have his papers in order so they were following procedure when they asked (told) him to leave.
He didn't respond quickly enough for them because he either copped an attitude, was in the middle of a download or was trying to finish a paper due in the morning....... or a combination.
If he copped an attitude, it was because he was an ass or because the campus cops are bullys....likely both.
My personal experience with "enforcement" is the more power the officer has, the less they abuse people. More professional, if you will. The State Police give, nor take, any bullshit, the locals are more prone to being pushy or bullying, and rent-a-cops are complete dicks.
The Patriot act doesn't change that, except to add more people with a little power to the mix, like airport/railroad screeners. Giving them tasers just makes their ongoing abuse more visible.