As an additional remedy, the operation or maintenance of any device, instrument, vehicle or machinery in violation of any provision hereof, and which causes discomfort or annoyance to reasonable persons of normal sensitiveness, or which endangers the comfort, repose, health or peace of residents in the area, shall be deemed, and is declared to be, a public nuisance and may be subject to abatement summarily by a restraining order or injunction issued by a court of competent jurisdiction. (Ord. 91-17 § 7)