When signs have been posted upon shopping center property, no person shall operate or drive any motor vehicle or other vehicle upon any shopping center property at a greater speed than twenty (20) miles per hour, and any speed in excess of said limit shall be prima facie evidence that such speed is neither reasonable nor prudent, and is unlawful.
(1981 Code, sec. 18.157)
(a) 
The chief of police and such other person as may be designated by him is hereby authorized to determine and designate intersections, streets, highways and alleys with exits from shopping center property where particular hazards exist, and to determine whether motor vehicles shall stop at one or more exits from such shopping center, and shall erect a stop sign at every such exit where a stop is required.
(b) 
When stop signs have been erected as provided for herein at or near the exit from any shopping center, every driver of a motor vehicle or other vehicle shall stop such vehicle at said sign before proceeding.
(1981 Code, sec. 18.158)
No person driving or operating or in charge of any motor vehicle or any other vehicle shall by negligence cause or suffer or permit such vehicle to come in collision with any other vehicle of any nature whatsoever, or with any person or any other obstacle or object of whatever kind, in any shopping center in the city. Violation of this section shall be known as the offense of “negligent collision.”
(1981 Code, sec. 18.159)