It is unlawful for any person to operate a snowmobile or all- terrain vehicle within the city so as to tow any person or thing in a public street or public highway except through use of a rigid towbar attached to the rear of the snowmobile or all- terrain vehicle, or within one hundred feet (100') of any fisherman, pedestrian, skating rink or sliding area where the operation would conflict with the use or endanger other persons or operation. (1974 Code § 1335.21)