That goes beyond “officer safety”. It is an illegal search IMO. Do they ask if you have a stereo in the car and check the reported serial numbers for theft reports too? How about your clothing tags? Whoa, let’s check the tires too.
I have been a police officer for 22 yrs. No officer I know of has ever asked to see or run a firearm just because they are a registered concealed permit holder. All it does is give me a heads up that a weapon may be in the car. Hell, most of the time they tell me they have it...never had an issue.