That explains why I once buried a speedometer, got pulled over and was surprised to learn I was doing considerably less than my adrenaline and the speedo said (140 mph).
Utah cop was nice enough. He did a slow walk around my car, which made me nervous as hell, said "nice car" and then let me go with a warning. I sat there for another 10 minutes just shaking 😂. That was a long time ago...I was doing a cross country trip and no one was on the road at that time of Sunday morning.