Unlike most of the other commenters I have personal experience fighting a college administration in court. It was a massive time waste and I came out losing a years of my academic career where they lost nothing (money is absolutely not a factor for a large university, nor is stalling court proceedings to waste your life). I'm not even allowed to elaborate deeply on what it was about, the settlement for putting it behind me was a binding NDA.
This isn't advice it's just a story about what happened to me, to give you an idea of how things *could* go for you:
What I did to warrant initial sanctioning by my college was filing a witness statement describing a petty disorderly offense another student did. Apparently the college didn't like that I filed a statement with the police and it did not go through their internal system. The school placed a hold and I contacted my dean by email. I was told by the dean, in writing, that I was not being sanctioned but the hold would remain until I attended a hearing to describe the incident as prescribed in the handbook. When I went to this 'procedural hearing' with the other witness, they brought us in one at a time in front of representatives of the student body and the administration. At the end of my account they told me I would receive their decision and sanctions by mail. They issued formal academic sanctions and created a remediation plan not unlike what they are requesting of you.
I retained a lawyer at this point and ended up filing a complaint in civil. There's nothing speedy here, judges stalled, the school stalled. Almost 2 years went by and we finally had the lawyers draft a settlement that made it possible to pursue college again. In the meanwhile they increased the sanctions on the remaining witness that didn't sue in order to retaliate. The student we filed the statement about, apparently the school couldn't touch since the police charged him. He got off paying a ticket and no other sanctions, last I heard he was in postgrad for mathematics and doing well for himself.