(A)   No person shall ride a bicycle upon a sidewalk within the central business district.
   (B)   The Chief of Public Safety is authorized to erect signs on any roadway prohibiting the riding of bicycles thereon by any person, and when such signs are in place, no person shall disobey the same.
   (C)   Whenever any person is riding a bicycle upon a sidewalk, such person shall yield the right-of-way to any pedestrian and shall give audible signal before overtaking and passing such pedestrian.
('84 Code, § 16-83)  Penalty, see § 10.99