None of the prohibitions hereinbefore enumerated shall apply to the following:
(A) Any police vehicle, ambulance, fire engine or emergency vehicle while engaging in necessary emergency activities;
(B) Excavation or repair of bridges, streets or highways, or other property, by or on behalf of the state, the village or the county between sundown and 7:00 a.m. when the public welfare, safety and convenience renders it impossible to perform such work during other hours; and
(C) Normal operation of equipment for farming or construction.
(Ord. 37, passed - -)