Picket lines and picketing shall be subject to the following additional regulations:
   (A)   Picketing may be conducted only on the sidewalks reserved for pedestrian movement, and may not be conducted on the portion of a street used primarily for vehicular traffic;
   (B)   Not more than ten pickets promoting the same objective shall be permitted to use either of the two sidewalks within a single block at any one time;
   (C)   Pickets may carry written or printed placards or signs not exceeding two feet in width and two feet in length promoting the objective for which the picketing is done, provided that the words used are not derogatory or defamatory in nature;
   (D)   Pickets must march in single file and not abreast and must not march closer together than 15 feet, except in passing one another. Pickets shall not be allowed to walk more than five feet from the curb line and shall be in continuous motion.
   (E)   If pickets promoting different objectives desire to use the same sidewalk for picketing and such use would result in the presence of more than ten pickets thereon, the Chief of Police shall allot time to each group of pickets for the use of such sidewalk on an equitable basis.
('75 Code, § 3.48)  Penalty, see § 10.99