It is unlawful for any person who is not a student of the school or an officer or employee of the Chula Vista City School District or the Sweetwater Union High School District to fail to comply with the public school regulations requiring the person to leave a school building or school grounds promptly upon request of the principal of the school or the designee of the principal, or after leaving a school building or school grounds pursuant to the request of the principal of the school or the designee of the principal, to fail to comply with the school regulations requiring him to remain off the school premises for 48 hours. This section shall apply only in the event the person is given notice of the school regulations requiring him to leave school premises upon request of the school principal or the designee of the principal and requiring him to remain off the school premises for 48 hours. (Ord. 2337 § 2, 1989; Ord. 1883 § 1, 1979).