Good point. And that was something I'd do occasionally 20 years ago. I don't do it much nowadays though. The cops now are cold and abrupt, with a "Why are you talking to me attitude?". Sorry, that's not an exaggeration.
Of course, it might not be the cop's fault. Maybe I'm getting more unlikable as I get older!
Frankly I find that the people who have most problems with police are assholes themselves.
The older cops in my small town will chat with you and interact, the younger ones watched too much COPS growing up. In a way the police culture brought a lot of the current criticism on themselves and failed to police themselves.
I have relatives who are officers or retired officers and a son who is wanting to become an officer when he is old enough. Based on conversations with my relatives I have told him repeatedly be prepared for some stuff you won’t believe that is shocking to the soul, most in your on the job encounters and sadly some from your fellow officers. I have also drilled into his head, people are citizens, not civilians and they have the same Rights you do, always remember that.