How can I fight judiciary injustice on my college campus? (Details inside. Alcohol related)

For the past three hours, I’ve been in my room doing homework and playing minecraft. My room is separate and closed off from the living room in my college suite. While I was in there, a party started in the living room and my suitemates were playing beer pong. I did not partake. In fact, I didn’t drink at all tonight.

An hour or two into the party, I leave my room and go to the bathroom for a while. I come out and go to back to my room and resume homework and minecrafting. No more than two minutes later is a knock and the large, salt and pepper-haired security guard comes in and asks me where I’m hiding people. I told him I didn’t know what he’s talking about, and he got up in my face and told me that he “knows I’m lying” and to “stop jerking him off and tell him where I’m hiding people.” He then opens my closet and out pops two underage kids. He gets up in my face again and starts screaming about how I’m fucked and I shouldn’t have lied to him and so on and that I need to go to the living room with my ID. I oblige, the RA takes my ID and writes my name down. In front of my drunk suitemates, the burly security sadist gets in my face again and starts screeching about how I “should know better than to jerk him off like that” and to “say yessir.” I nod, and he yells “fucking say yessir!” So I mumble yessir and retreat to my room. RA pours out the alcohol. I tell her I wasn’t drinking, involved in any way, or lying, and she says it doesn’t matter and I should expect an email in the morning about talking to the judiciary board (which is made up of one guy who hates my entire friend group).

The issue here is that I have never been in trouble, I’m a straight A student, a member of ODK and a chairman of the Nonprofit Leadership Alliance. Basically, I’m a good student, a good kid, and I feel fucking violated by what security did tonight, especially since I had nothing to do with it. I have a full-ride scholarship which is on the line now and in the hands of a single man that arbitrarily hates me. I have my doubts that telling the truth will help since the fucking head of security is convinced I was “jerking him off” and the head of j-board thinks I’m satan for some reason.

What should I do? I’m really freaking out here.