> You'd be surprised how well being civil to them works if you get pulled over.
I had this very experience a couple weeks ago, in Columbus, Ohio (where I live).
I was going about 80-82 mph in a 65 mph zone, and passed a cop without realizing it (it was dark out, with streetlights lit). When he pulled me over, I was polite; he asked me were I was going (to work), and who I worked for. After he ran my license to make sure that I wasn't wanted for anything, or had recent prior speeding tickets, he gave me a warning and let me go on my way. He too was polite to me during our conversation, and I was glad I only got a warning since I wouldn't have been very successful trying to contest a speeding ticket when I was going 15+ mph over the limit.
Granted, I may have been lucky and gotten stopped by a nicer cop, but they are out there.