In CA it is not required that you tell cops you have a CCW and are packing. That is if you are lucky enough to live in one of the counties that actually issue permits. In fact, my CCW instructor told us that it was stupid to tell them, since you(in CA)are not legally obligated and because some cops go ape sh** when they find out you have one.
If you are complying with the law and your firearm is concealed as it should be there is no reason for them to ever know you have one.
In my county on traffic stops, when a license plate is called in on the scanner, dispatch usually responds informing the officer that the registrant has a CC permit. “Bob Jones indicator 4” or something like that.