If that's the actual wording used in the bill... then I have several questions.
First off, free speech rights are that the government can't arrest you for what you say. Unless the students are government officials, I don't see how bringing free speech into it makes any effect at all. If you're violently forcing an event to close for example, then that's either covered under other laws (Like disorderly conduct, assault, battery, intimidation, etc) or the University's existing policy.
Second, the wording is really dumb. Going by dictionary definitions, "abusive" covers "violent" and "other disorderly conduct", "profane" covers "indecent" and "obscene", and "unreasonably loud" covers "boisterous". (Who the forget says boisterous anyway??????)
Third, as the article stated, it doesn't define what constitutes any of those many words. Precise definitions are crucial to policy.