The experimental college is basically where you can learn to do different things (cook, dance, play music, yoga, etc). It costs extra money outside of the university and student fees/tuition.
take a look for yourself:
Experimental College
and the classes
Experimental College
besides that, I do not believe that there are actual guitar classes that you could take like for Majors or non-majors. At most, I think that you'd probably be able to find some other students on campus that play guitar and would be more than happy to help you out!
best of luck!