It shall be unlawful for any person to wilfully interfere or hinder any city officer or firefighter in the performance of his duty at, going to, or returning from any fire, or while attending to his duties as a member of the fire department, or to wilfully or negligently drive any vehicles across, along, or upon any fire hose, or to wilfully cut, deface, destroy, or injure, any telegraph wire or pole or signal box or bell, or any of the property belonging to or connected with fire department, or any fire alarm telegraph. (1983 Code § 2.10.100)