I carried a copy of Mao's little red book when I was in college. Didn't everybody?
Talking to campus security is a waste of time. Just keep walking, talking and handing out whatever you want to hand out. Make the security guy into the aggressor by not interacting with him. What penalty will the college assess against registered students for handing out flyers without filling out the "required" permission slip? I sort of doubt that there is a criminal infraction there to warrant a warrantless arrest. Kind of the best they could come up with would be Disorderly Conduct, which would not stand up in most courts.