11.28.080 SKATEBOARDS AND BICYCLES.
(a) Skateboards and In-line Skates. It is unlawful for any person upon or riding on or by means of a skateboard or in-line skates to go upon any public street or alley within the central traffic district as defined in Section 11.08.030 of the City of San Mateo Municipal Code, or in, upon or around City parking lots and structures, when appropriate signs giving notice thereof have been erected or painted on the pavement surface, except that such activity may be permitted if it is sponsored, operated and controlled by the City's recreation department. For purposes of this ordinance, the public streets and alleys include the public sidewalks located on either side of those streets or alleys or which exist in the median strips or any other location within the central traffic district.
(b) Bicycles. It is unlawful for any person to operate a bicycle in, upon or around the inclined surfaces of city parking structures, excepting when necessary to utilize said structure for parking, when appropriate signs giving notice thereof have been erected.