Upon probable cause that a violation of these rules has occurred, a campus safety officer, commuter services employee, or contractor designated by commuter services may issue a citation setting forth the date, the approximate time, the locality, the nature of the violation, the license plate number, infraction, officer, and the amount of fine(s). The citation shall be served on the person responsible for the violation by: Attaching a copy of the citation to, or placing it prominently within, the vehicle allegedly involved in the violation; mailing a copy of the citation to the person responsible; or serving a copy of the citation personally on the person responsible.