(a) No person shall operate a bicycle upon a sidewalk within a business district, the Central Business District, or upon a sidewalk within a shopping center, or upon a sidewalk where signs are erected prohibiting such operation.
(b) Any person lawfully operating a bicycle upon a sidewalk shall use the right side of the sidewalk. Upon all heavily traveled thoroughfares, it shall be the duty of all persons operating bicycles to ride in single file. (1978 Code 75.10)
(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.