10% (I think) of RIT is hearing impaired so you would have plenty of opportunity to use sign language even if not majoring in it . For any major, you can register for classes that have sign interpreters. My DD was hired as a note-taker for these classes for students who needed to pay attention to the interpreter and unable to take notes at the same time. Knowing sign language would also help with on campus jobs.
But don't choose a school just for that, unless you're sure you can get into the class. I was a deaf ed major. The program admitted very few students and even those students had a hard time getting their sign classes in before they needed to start interacting with students. The chance of a non-major getting into a sign class at my school was 0%