Officers of the police department and such officers as are assigned by the chief of police are authorized to direct all traffic by voice, hand, audible or other signal in conformance with traffic laws, except that in the event of a fire or other emergency or to expedite traffic or to safeguard pedestrians, officers of the police department or members of the fire department may direct traffic as conditions may require, notwithstanding any regulation or provision contained in this title or the Vehicle Code.
(Prior code § 5-1.50)
No person other than an officer of the police department or members of the fire department or a person authorized by the chief of police or a person authorized by law shall direct or attempt to direct traffic by voice, hand or other signal, except that persons may operate, when and as provided in this chapter, any mechanical pushbutton signal erected by order of the city traffic engineer.
(Prior code § 5-1.50 (a))
The removal, obliteration or concealment of any chalk mark or other distinguishing mark used by any police officer or other employee or officer of the city in connection with the enforcement of the parking regulations of this title, if done for the purpose of evading the provisions of this title, shall constitute a misdemeanor violation.
(Prior code § 5-1.52; Ord. 1222 § 19, 1985)
At places where large numbers of people and vehicles are to gather or have gathered, nothing in this title shall be construed to prevent any police officer from prohibiting any person from parking any vehicle upon or using any street or sidewalk, or from prohibiting any pedestrian from using any street or sidewalk, and the police officer shall have authority to direct the parking of vehicles in any reasonable manner, way or direction, and it is unlawful for any person to fail to promptly obey the police officer's order, signal or command, regardless of any other provision of this title.
(Prior code § 5-1.54)
A. 
The provisions of this title regulating the operation, parking and standing of vehicles shall not apply to vehicles operated by the police or fire department, any public ambulance or any public utility vehicle or any private ambulance, which public utility vehicle or private ambulance has qualified as an authorized emergency vehicle, when any vehicle mentioned in this section is operated in the manner specified by the Vehicle Code in response to an emergency call.
B. 
The exemptions set forth in subsection A of this section shall not, however, relieve the operator of any such vehicle from the obligation to exercise due care for the safety of others or the consequences of his or her wilful disregard of the safety of others.
C. 
The provisions of this title regulating the parking or standing of vehicles shall not apply to any vehicle of a city department or public utility while necessarily in use for construction or repair work or any vehicle owned or operated by the United States Post Office while in use for the collection, transportation or delivery of United States mail.
(Prior code § 5-1.55)
A. 
The operator of a vehicle or the person in charge of any animal involved in any accident resulting in damage to any property publicly owned or owned by a public utility, including, but not limited to, any fire hydrant, parking meter, lighting post, telephone pole, electric light or power pole, or resulting in damage to any tree, traffic-control device or other property of a like nature located in or along any street, shall within 24 hours after such accident make a written report of such accident to the police department of the city.
B. 
Every such report shall state the time when and the place where the accident took place, the name and address of the person owning and of the person operating or in charge of such vehicle or animal, the license number of every such vehicle, and shall briefly describe the property damage in such accident.
C. 
The operator of any vehicle involved in an accident shall not be subject to the requirements or penalties of this section if and during the time he or she is physically incapable of making a report, but in such event he or she shall make a report as required in subsection A within 24 hours after regaining ability to make such report.
(Prior code § 5-1.56)