A. It shall be the duty of the police department to enforce the provisions of this title. Officers of the police department are hereby authorized to direct all traffic, either in person or by means of visible or audible signal, in conformance with the provisions of this title; provided, that in the event of a fire or other emergency or to expedite traffic or safeguard pedestrians, officers of the police or fire departments may direct traffic, as conditions may require, not withstanding the provisions of this title.
B. No person shall refuse or fail to comply with any lawful order, signal or direction of a police officer. (1984 Code § 23-3)