If you have a big problem, and others (especially teachers and other staff), then maybe you should go to a school board meeting (or a few) and bring this matter up. The only people who can change the policies are those who write them.

If you've read any of my posts on matters like this before you will know I went through stuff like this, and I tried getting around the system. As I was never caught for it, people knew and the word got around to the admin. Who I think had me framed for "doing stuff" on the network so I would be banned from touching the computers. You don't want to be in that sort of position, because it could get REALLY ugly. Find the right political ways of dealing with stuff, who knows maybe you can help yourself and others to come after you. Don't be the criminal, be the hero man, or at least try.