[IN] Can a former employee challenge a university trespass notice issued without prior warning?

I was trespassed from a university for simply walking in front of the hotel for which I was fired from. This hotel is on university property; however, they never once stated that I was banned from property. In fact, I had talked with HR the previous day who confirmed I never was. This was during a home football game where there was traffic everywhere, yet I was targeted for some strange reason, and the university police came at me with tasers drawn, frisked me, and banned me from all property. The only crime in their own words was "walking in front of the hotel," which I was never banned from, and after consulting many other university employees, is not at all policy.

I am currently in a lawsuit against the university for firing me in an act of retaliation. However, did the university police potentially violate anything themselves here?

I have documentation that the previous day I was invited to an in-person meeting with them on campus. While I do not have any documentation stating I was banned from campus, I would not have been allowed to attend that meeting had I been banned from campus.

None.

No.

I was just employed there.

I do, however, live right next to campus. In fact, so close that if I walk just two steps the wrong direction, I am now trespassing on campus.

Indiana.

It's an open campus, but it's private property. The university itself is supposedly its own jurisdiction. I know though that visitors are allowed at all times, especially during football games, and there were even going to be football-related events at the hotel itself, which I was planning on going to.

Also, every time I call the university police to confirm what is and isn’t university property so I don’t violate the trespass notice, the university police over the phone keep informing me that it is an open campus until I mention I was trespassed, at which point they always have to get with a supervisor and tell me what is and isn’t considered university property.

The exact wording on that trespass notice is as follows:
"You are hereby notified that you are on private property owned by the University of Notre Dame. As a private property holder, the university has the right to tell you to leave university property. By copy of this notice, the university is providing you with written notice that you must leave university property and that you may not return to any property owned by the university in the future. If you are found to be on university property again, you will be arrested for criminal trespass."

I guess my real question for this then is, since I'm in this situation where I live right next to university property and also do not have a car, and I’m now always in this position where I’ve been advised not to even take public transport because it goes on university property—was there any possible violations that I could theoretically take this to court over?

I’m likely going to be appealing the trespass with the university directly; however, if there is anything here that may or may not be grounds for a lawsuit, I would love to include that in the appeal letter.

I guess I’ll just bring that up to them privately then when I appeal. Thank you.