Friend of a friend had a nosy doctor (his fault) call the police on him as a potential suicide recently.
Cops showed up, no 72 hour hold, but they asked permission to take his firearms for a week. He and his family obliged (dumb).
One of the firearms taken was a freshly built AR, not registered to anyone. He got everything back at the end of the week (lucky), and they paid the unregistered AR no mind. They were much more interested in a pre ban, legit Norinco AK47.
When the friend called me during the middle of the ordeal, I told him his friend would be lucky to get anything back and was probably ****ed 7 ways to friday, all of which were his fault.
Moral of the story - No one knows. The one cop that pays no mind could easily be the super cop that does. They could charge you with something that makes no sense or they could miss the three things youre actually guilty of. The best advice I ever got was to stay the **** away from them and dont put yourself in a situation theyre looking at you to begin with.