No mention of whether the serial number was run, or whether that was a pretext for seizing the gun.
We've been all through this before on this forum. Gun has nothing to do with the speeding ticket (or in this case, a head light being out.)
Is AZ a must-inform state?
The writer thought the officer was professional? The true test of police professionalism is not how they behave when you acquiesce to their requests or questions; it is how they behave when you exercise your rights.