Disclaimer: I am not a lawyer, and this is not legal advice.
Bicycles are defined as “devices” instead of vehicles under California law in the CVC 231:
231. A bicycle is a device upon which any person may ride, propelled exclusively by human power through a belt, chain, or gears, and having one or more wheels. Persons riding bicycles are subject to the provisions of this code specified in Sections 21200 and 21200.5.
So, does that make me a devicular cyclist in California?
“No Vehicles Sign” photo by Marcus Quigmire CC BY 2.0 license.