Section 720 ILCS 5/21-2 - Criminal trespass to vehicles(a) A person commits criminal trespass to vehicles when he or she knowingly and without authority enters any part of or operates any vehicle, aircraft, watercraft or snowmobile .(b) Sentence. Criminal trespass to vehicles is a Class A misdemeanor.Amended by P.A. 097-1108,§ 10-5, eff. 1/1/2013.