(A) No person or persons shall engage or participate in, aid, form, or start any parade unless a parade permit has been obtained from the Chief of Police or other authorized city official.
(B) This subchapter shall not apply to:
(1) Funeral processions;
(2) Students going to and from school classes or participating in educational activities, provided the conduct is under the immediate direction and supervision of the proper school authorities;
(3) A governmental agency acting within the scope of its functions.