(a) No person shall ride a bicycle upon a sidewalk within a business district between Columbus Road and North Park, except a police officer in the performance of his or her duties.
(b) No person, except a police officer in the performance of his or her duties shall ride a bicycle upon a sidewalk when the Chief of Police or an officer designated by him has prohibited the riding of bicycles thereon and has erected signs on or along such sidewalks setting forth such prohibition.
(c) Whenever a person is riding a bicycle upon a sidewalk, such person shall yield the right of way to any pedestrian and shall give an audible signal before attempting to overtake and pass such pedestrian.
(d) Except as otherwise provided in this subsection, whoever violates this section is guilty of a minor misdemeanor. If, within one year of the offense, the offender previously has been convicted of or pleaded guilty to one predicate motor vehicle or traffic offense, whoever violates this section is guilty of a misdemeanor of the fourth degree. If, within one year of the offense, the offender previously has been convicted of two or more predicate motor vehicle or traffic offenses, whoever violates this section is guilty of a misdemeanor of the third degree.