No person upon roller skates, or riding in or by means of any coaster, toy vehicle, or similar device, shall go upon any roadway except while crossing a street on a crosswalk; and when so crossing, such person shall be subject to all of the duties applicable to pedestrians. This section shall not apply upon any street while set aside as a play street as authorized by ordinances of this city.
(Prior Code, § 15-207) Penalty, see § 70.999