Except when authorized by a written permit from the parks and recreation department, it is unlawful for any person or persons to consume any alcoholic beverage or possess any open container containing any alcoholic beverage in or upon any community park, neighborhood park or greenbelt park within the city. Applications for permits shall be submitted to the parks and recreation department at least one business day before the event at which alcohol is to be consumed, and a copy of the permit must be in the possession of a responsible party at the community park, neighborhood park or greenbelt park at all times during the event at which alcohol is to be consumed or possessed in an open container. (Ord. No. 1231, § 5 (part).)