The following shall not be cause for a violation or offense under this chapter:
A. The operation of sirens or other warning devices by ambulances, firetrucks or other emergency vehicles when responding to or attending to an emergency situation, or by city or other governmental entity for the purpose of alerting or otherwise warning the public of imminent danger;
B. Noise emitted by vehicles or other machinery operated by or on behalf of the city or another governmental entity for the purposes of operating emergency generators, snowplowing, mosquito abatement or for emergencies or general maintenance;
C. Noise generated as part of a city, school or other public or community event sanctioned by the city, including festivals, music concerts, parades and street or other fairs;
D. Noise emitted or generated in the operation of a mass transit system or by aircraft;
E. Noise emitted by church bells, chimes and carillons;
F. Noise emitted by residential home generators during an electric power outage. (Ord. 16-O-40, 8-16-2016)