509.11 CIVIL EMERGENCY.
(a) Whenever, in his judgment, the Mayor determines that an emergency exists as a result of mob action or other civil disobedience causing danger of injury to or damages to persons or property, he shall have the power to impose by proclamation any or all of the following regulations necessary to preserve the peace and order of the City:
(1) To impose a curfew upon all or any portion of the City thereby requiring all persons in the designed curfew areas to forthwith remove themselves from public streets, alleys, parks or other public places; provided, however, that councilmen, physicians, nurses and ambulance operators performing medical services, utility personnel maintaining essential public services, firemen and City authorized or requested law enforcement officers and personnel may be exempt from the curfew.
(2) To order the closing of any business establishment anywhere within the City for the period of emergency, such businesses to include, but not be limited to, those selling intoxicating liquors, malt beverages, gasoline or firearms.
(3) To designate any public street, thoroughfare or vehicle parking area closed to motor vehicles and pedestrian traffic.
(4) To call upon regular and auxiliary law enforcement agencies and organizations within or without the City to assist in preserving and keeping the peace within the City.
(b) The proclamation of emergency provided herein shall become effective upon its issuance and dissemination to the public by appropriate news media.
(c) Any emergency proclaimed in accordance with the provisions of this section shall terminate after forty-eight hours from the issuance thereof, or upon the issuance of a proclamation determining an emergency no longer exists, whichever occurs first; provided however, that the emergency may be extended for such additional periods of time as determined necessary by the Mayor.
(d) Whoever fails or refuses to comply with the orders of duly authorized law enforcement officers or personnel charged with the responsibility of enforcing the proclamation of emergency authorized herein is guilty of a misdemeanor of the first degree.