I also don't see how respectfully asking for ID is unacceptable behavior.
I can explain that.
If they ask over mere OC, it means they believe the basic human right of self-defense is suspicious.
This is not just unacceptable; it is intolerable. It would be bad enough from a citizen. From a government agent it is completely intolerable.
Also, while the mouse cop is busily telling you it was oh-so legal and not a problem and properly handled and everything is fine, he is carefully avoiding telling you it was entirely possible for the police to observe from a distance without ever contacting you.
Those two reasons are why it is my personal policy to write a formal complaint for even a consensual contact from police about my OCd gun.
Now, to take a side-track for a moment, before anybody howls that I am being unreasonable for automatic formal complaints, 1) re-read what I wrote about why, and 2) understand that cops frequently screw up even consensual encounters. So, its not like I'm really adding all that much to the quantity anyway since there is likely to be a legitimate complaint point or points during even a consensual contact, even without the intolerable--human right aspect.
Back to my main discussion. You see, no matter how nice they are, they are
investigating you. No matter how nice they are, it is an adversarial encounter. Their niceness is intended to lull you from the adversarial nature. They fully intend to investigate as much as they can until they are satisfied, meaning they fully mean to be adversarial. They just don't want you to understand that. They want you to be un-adversarial (while they continue being adversarial), because then you might invoke your rights and thwart their investigation.
Now, one could say, "Well, I have nothing to hide." Cops on this forum will sometimes even say, "If you have nothing to hide..." This is an incorrect importance. The correct importance is that we have no way of knowing whether we are being confronted by a good cop or a bad cop. Right on this very forum we've heard the police car audio recording of two cops who were oh-so nice to the OCer, but when back at the car, the audio showed one cop saying to the other, "There has got to be something we can get him for."
The nice cop is potentially the most dangerous. Remember, even the nice cop is adversarial.