Just to add some sources confirming that California does not allow rolling stops:

https://www.thetrafficticketattorneys.com/blog/7-things-you-...

https://www.sidmartinbio.org/what-is-the-fine-for-a-californ...

https://www.shouselaw.com/ca/defense/vehicle-code/22450/

https://leginfo.legislature.ca.gov/faces/codes_displaySectio...