(a) No person shall congregate with others on the sidewalks, street corner, or within the parks or public grounds, with intent to provoke a breach of the peace; or whereby a breach of the peace may be occasioned by the serious annoyance to pedestrians or by threatening, insulting or abusive conduct to them; and refuse to move on when ordered by a police officer.
(b) Whoever violates this section is guilty of a minor misdemeanor.