If you dont have previous experience you are most likely going to have to try out for the team as a walk-on. Im sure if you get in touch with one of the coaches or wrestlers they could inform you as to when try outs are.
A team isnt just going to let anyone "join". Remember that you train with the team--which means you need to be able to pull your own. This doesnt mean you need to beat someone at tryouts. Ive seen people make it as a walk on and still lose try out matches.
I guess the real question is "have you ever wrestled"?
Im not talking about wrestling as a sport. Im aksing if you have experience "wrestling around" or sparring with your friends through out your life?
If you are have any outstanding strength/explosiveness qualities and feel comfortable "wrestling around", their would be a possibility of (what i would assume would be) your unorthodoxed style getting you on a team.
I am definitely NOT trying to deter you. just giving you some things to think about. I dont feel that its"too late to wrestle"
you may be lacking in skill to make your college wrestling team. those are two entirely different facts if you ask me;)
Honestly, the best thing you can do is just go try out. You make it or you dont. Either way you are going to learn something about yourself.
..and if you had FUN, there are always plenty of recreational (jiu jitsu, judo, or other mma's)wrestling places popping up all over the place.