Is maintenance allowed to enter my apartment without warning in a university housing complex?

Question Details:

A maintenance worker knocked and before I or my roommate could answer, unlocked the door to our apartment and entered this morning. He then knocked on my roommate's door inside the apartment and when she didn't answer, unlocked that door as well. She was naked and asleep. We would like to file a complaint but I read back through my apartment policies which said maintenance could always enter the apartment without permission. However, I thought this was against the law, that we had to be given 24 hours notice. Is my complex exempt from the law because it is university housing? Important Notice