(3) Nothing shall prohibit a district school board from having the right to expel, or to take disciplinary action against, a student who is found to have committed an offense on school property at any time if:
(a) The student is found to have committed a delinquent act which would be a felony if committed by an adult;
(b) The student has had adjudication withheld for a delinquent act which, if committed by an adult, would be a felony; or
(c) The student has been found guilty of a felony.