Like virtually all of the virtue signaling pushed by the liberal/socialist/democratic left the real impact will be minimal.
I wonder how long it will take for ammo stands to appear on the Nevada side of the California-Nevada state line. Still remember all of the fireworks stands on the Alabama-Florida state line when you couldn’t buy fireworks legally in Florida. Think about tobacco stands on all of the Indian reservations as an other example of failed virtue signaling.
CA LEOs photo tags at places like cabelas over in NV for that.