If you really did just crash there ... obviously you are a safety hazard. If you make a claim against the university, (claim the roads were ill-maintained, for instance,) then it is a headache for the school, though they would win (riding uninvited on private property, though perhaps not posted.) if you hit a student or a car, or caused an accident .... that might get pricey for the school ("Why was this nut allowed to go racing on private roads where students are walking to classes?")
Not too hard a topic to plumb ... imagine if some stranger came to your place of business, paced off 100 meters down a corridor, and started doing 100-meter dashes, flat out.