(a)    No person, by himself or herself or by the operation of any instrument, device, agency or vehicle, shall make any unnecessary or unseemly noise within 160 feet of any portion of the grounds and premises on which is located a hospital or other institution reserved for the sick, aged or infirm or within 150 feet of any school, court house, church or building in which religious services are held, during school hours, hours of public worship, or hours of holding court. The area within 150 feet of a hospital, school, court house or church shall be offcially known as a "zone of quiet" and the Service Director's Department shall place signs within such zones of quiet calling attention to the prohibition against unnecessary noises.
   (b)    Whoever violates this section is guilty of a misdemeanor of the third degree and shall be subject to the penalty provided in Section 698.02. (Ord. 1999-52. Passed 11-9-99.)