(A) It shall be unlawful for any person operating or occupying a motor vehicle on a street or highway within the limits of the city to operate or amplify the sound produced by a radio, tape player, boombox, or other mechanical sound-making device or instrument from within the motor vehicle so that the sound is:
(1) Plainly audible at a distance of 100 feet or more from the motor vehicle; or
(2) Louder than necessary for the convenient hearing by persons inside the motor vehicle in areas adjoining churches, schools, or hospitals.
(B) The provisions of this section shall not apply to any law enforcement motor vehicle equipped with any communications device necessary in the performance of law enforcement duties or to any emergency vehicle equipped with any communication device necessary in the performance of any emergency procedures.
(C) Provisions of this section do not apply to motor vehicles used for business or political purposes, which in the normal course conducting such business use sound-making devices and have obtained the proper permit from the police department. The provisions of this subsection shall not be deemed to prevent the city, with respect to streets and highways under its jurisdiction and within the reasonable exercise of its police power, from regulating the time and manner in which such business or political activity may be operated.