Each board may pass and adopt ordinances which are necessary for the regulation, use, and government of the parks and grounds under its supervision, not inconsistent with the laws of the State. These ordinances shall be published for ten days, Sunday excepted, in a daily newspaper to be selected by the board, published in the city or city and county in which the board is acting. Publication shall be commenced within five days after passage of the ordinance.
Every person who violates any published ordinance is guilty of a misdemeanor.
Ca. Pub. Res. Code § 5193