You're right in a contact initiated by you, you have no duty to notify. As I indicated, most of my contact comes through traffic stops so then I have a duty to notify.
Yes, I agree that most cops don't want to see OC, and most City PD where I live don't like CC either. I have had some very smarmy comments from them, but then, I shoot at the range often. One year, all the PD here FAILED their annual qualifying shoot! You can tell when quals are coming up by listening to the scanner and hear all the PD going 10-8 at the range that the city built for them
Thankfully, most are passing their annual qual lately
I somewhat enjoy talking to people who think that all LEOs know everything about firearms. That is until I start mentioning stories of NDs and officers being unsafe. Then the folks I'm talking to realize just how un-knowledgeable some people really are. The campus cops at the college I went to were about the same....about a month before quals they all started going to the range so they could pass. Was talking to one officer once and he said there were some officers who only removed their firearm from the holster once a year....at qual time.