(1)
The police department shall enforce provisions of this chapter.
(2)
Officers and/or community service officers assigned to the patrol bureau are authorized to direct all traffic, either in person or by means of visible or audible signals, in conformance with the provisions of this chapter, except that in the event of a fire, other emergency, or event, to expedite traffic or safeguard pedestrians, officers or agents of the police or fire department may direct traffic as conditions may require, notwithstanding the provisions of this chapter.
(3)
The police may close temporarily any street or highway in an impending or existing emergency, or for any lawful assemblage, demonstration, or procession, provided there is reasonable justification for doing so.
(4)
The police may temporarily prohibit parking on any street or highway or portion thereof in any impending or existing emergency, or for a lawful assemblage, demonstration, or procession, provided there is reasonable justification for such prohibition.
(5)
Vehicles parked in places where parking is prohibited temporarily may be removed by or under the direction of any police officer or patrol community service officer.