(a) City officers and employees shall be courteous in their official transactions with the public, and they shall conduct themselves in the performance of their official duties so as to not knowingly deprive any person, at the time and under the circumstances then existing, of any lawful right or benefit to which such person may be entitled. Any person who feels aggrieved by the conduct of any City officer or employee in violation of this subsection is hereby invited to bring such matter to the attention of such officer's or employee's department head or to the Manager without prejudice to any other recourse to which such aggrieved person may be entitled.
(b) Members of the public, in turn, should be courteous in their transactions with City officers and employees, and it shall be unlawful for any person to knowingly taunt, deride, jeer or otherwise debase or insult, whether by act, word or gesture, any City officer or employee at any time or place while such City officer or employee is lawfully engaged in the performance of official duty. (1976 Code Sec. 13-11)