648.11 DISORDERLY CONDUCT IN AND AROUND RESTAURANTS.
   (a)   No person, while on or adjacent to the premises of a restaurant, shall race the motor of any car, suddenly start or stop any car or make or cause to be made any other loud or unseemly noise. No person parked on the premises of such restaurant shall blow or cause to be blown any automobile horn or motorcycle horn at any time while so parked.
   (b)   No patron or other person on the premises of a restaurant, whether in or out of an automobile, shall drink beer or intoxicating liquor or have in his possession any open bottle, can or other receptacle containing beer or other alcoholic beverages of any type, nature or description unless the same have been purchased on the premises.
   (c)   No group of three or more persons shall congregate and linger at any location on the premises of a restaurant other than in the restaurant building or in a legally parked motor vehicle. Persons so congregating and lingering shall be deemed guilty of loitering. No person shall drive a motor vehicle onto the premises of a restaurant and then off such premises without parking such motor vehicle, unless there is no unoccupied parking space available on such premises.
   (d)   No person shall leave any unoccupied motor vehicle on any restaurant parking lot and leave the premises thereof, except with the knowledge and consent of the operator of the restaurant.
   (e)   It shall be the duty of the restaurant operator who furnishes parking for patrons to post on the premises in a conspicuous location one or more signs bearing the following legend:
CRUISING OR CONGREGATING AND LINGERING OUTSIDE A MOTOR VEHICLE IS UNLAWFUL. NO UNOCCUPIED VEHICLE MAY BE LEFT ON THESE PREMISES WITHOUT THE CONSENT OF THE RESTAURANT OPERATOR.
(Ord. 1965-103. Passed 6-7-65.)
   (f)   Whoever violates any of the provisions of this section is guilty of a minor misdemeanor. Punishment shall be as provided in Section 698.02.