You are all good man. I am willing to bet this was a traiining issue because LEO,s other than the ATF get very little training on this subject matter. i agree with Ron-Solo. Give his supervisor a call. Not to file a complaint, but to make them aware there are some training issues that need to be addressed. You may be doing a lot of people a favor by doing so.
In the meantime, give your AK another once-ove to make sure you are 922r compliant....just for your benefit.
"If you expect logic associated with California law, it will only make your head hurt.." - Ron-Solo, 2013