(a) No person shall play or engage in any games of sport, or ride upon or operate a skateboard, roller skates or in-line skates, on any roadway such as tends to obstruct or impede the free use of such public roadway.
(b) No person shall ride upon or operate a skateboard, roller skates or in-line skates upon a sidewalk within the Uptown District as defined in Chapter 1147 of the Codified Ordinances, upon a sidewalk within a shopping center, or upon a sidewalk or parking lot where signs are erected prohibiting such operation.
(c) Whoever violates any provision of this section is guilty of a minor misdemeanor on a first offense; on a second offense within one year after the first offense, the person is guilty of a misdemeanor of the fourth degree; on each subsequent offense within one year after the first offense, the person is guilty of a misdemeanor of the third degree.