No non-affiliate shall remain on University property if directed to leave that University property by the chief administrative officer of the campus or facility, or an officer or employee designated by the chief administrative officer to maintain order on the campus or facility, upon the reasonable determination of that officer or employee that the non-affiliate is committing an act that is likely to interfere with the peaceful conduct of the activities of the campus or facility or has entered the campus or facility with the purpose of committing any such act.