glad this has been true for you... but not true for everybody...
My last ticket (25 years ago) was a warning I got in a school zone. The sheriff deputy said I was going 32 in a 30, even though I was keeping the same distance from the car in front of me. I told him my speedometer was broken and showed him the greasy red rag on the seat next to me, and told him I was on the way to the dealer [which I was] to get the replacement which had to be ordered.
I drive a van with big telephone numbers on the side. Believe me, if I disregard any law, people will call in and let the owner know. That alone makes me very conscious of my driving. I come to a total stop at stop signs, and don't speed when I drive that van. Put it this way, I learned that the first day I was speeding on a freeway on the way home.