(A) No person shall ride a bicycle upon a sidewalk within a business district.
(B) No person shall ride a bicycle upon a sidewalk when the Chief of Police or officer designated by him has prohibited the riding of bicycles thereon and has erected signs on or along those sidewalks setting forth the 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.
('80 Code, § 5-43) Penalty, see § 70.99