No person receiving or delivering goods, wares or merchandise shall place or keep upon, or suffer to be placed or kept upon any sidewalk in the city any goods, wares or merchandise which he shall be receiving or delivering. Provided, however, if any such person shall desire to receive or deliver any such goods, wares or merchandise in any building where by reason of want of an alley adjacent to the real estate upon which the building is situated there is no convenient access thereto other than by passing over such sidewalk, then such person may receive or deliver such goods over and across such sidewalk, but shall at all times leave a passageway of not less than six feet in width for pedestrians, and shall not suffer the same to be or remain upon such sidewalk for longer than two hours.
('74 Code, § 25-20) Penalty, see § 99.999