Most tech workers in CA are non-exempt employees. The law was setup in CA to protect unfair work practices of companies like Google who making their exempt employees work overtime.
Most developers and technical people fall under CA's strict non-exempt jobs. The big exception are managers of two or more people. Under the laws, if you work more than 8 hours in a work day, you are entitled to pay time +half. Yes, that's right, it's not based on a 40 hours work week, it's based on working more than 8 hours in a day.
For more information check this out:
http://www.workforcesoftware.com/resources/ca_laws.html
I had to work through all of this for my company which is based in the Valley. Being an out of state employee I'm excluded by these practices.