Last time I got pulled over in Oregon, I was doing close to 90 heading to the coast, in the rain. I say the state trooper come around the corner ahead of me, then my radar detector went from dead calm to screaming with red lights flashing.
As soon as I saw his brake lights behind me I pulled over and waited for him to come back.
When he walked up to my window (did I mention it was raining?), he could see my wallet and keys on the dash, window down, hands open and on the steering wheel.
His response, "Sir, you can feel free to relax."
I told him I was armed and had a carry license. He really acted as though he didn't care. Asked for my license, I handed him my DL and my CHL. He just kind of glanced at the CHL and handed it back.
I just knew I was getting a big, fat citation as a reward for goofing off and making a state trooper get out of his car in the rain.
When he got back to me, he asked why I was in such a hurry. I told him honestly that I wasn't in any sort of hurry, just came down off a long grade and didn't really realize how fast I was going.
He told me (extremely professionally) that the roads were a bit wet and the Oregon State Police requested that I slow it down some.
I'm convinced that my demeanor during that stop got me out of a huge citation and fine. If I still had a CHL and lived in Oregon, that would probably be exactly the way I handle traffic stops.
In Kalifornia, getting a CWP is unlikely, not that I have anything to use it for (no guns). Generally, I still present myself in the same manner during traffic stops, but it's more in the interest of demonstrating that I'm no threat to the officer.
State Police, at least here in Oregon, tend to be extremely professional. They often work alone and with cover very far away, so they know how to talk to people and not to unnecessarily escelate a situation. They are trained in a seperate academy apart from all other Oregon Police Officers and Deputy Sheriffs and in a different, more militaristic fashion. They tend to be para-military, but in an extremely elite and professional manner. Very good guys.