It is a mistake to think of this from a viewpoint on Unions/No Unions. The school has no power to have this man arrested. The school has no power to have him "medically evaluated". They have no power to prevent him from traveling and in fact cannot ban him from the campus without a court order.
The State of Maryland is the most egregious offender here. THEY are the ones who have violated this man's rights. THEY are the ones who can apparently do this to anyone under the guise of security. The School is merely an excuse, an enabler of the State.
If this issue is not resolved quickly, with the authorities paying lots and lots of money and government employees being punished in some manner, be afraid.
Be Very Afraid. Because the jokes about the Soviet Union will no longer be so funny.