§ 1211. Limitations on backing. (a) The driver of a vehicle shall not back the same unless such movement can be made with safety and without interfering with other traffic.

(b) The driver of a vehicle shall not back the same upon any shoulder or roadway of any controlled-access highway.

(c) the driver of a motor vehicle engaged in retail sales of frozen desserts as that term is defined in subdivision thirty-seven of section three hundred seventy-five of this chapter directly to pedestrians shall not back the same to make or attempt to make a sale.