I-55 wasn’t complete, and we had to get off the Interstate in Mississippi. Peter was driving, and pointed out to me that a policeman had been following us for several miles. He carefully obeyed the speed limit, so we were both surprised when the cop turned on his lights and siren and pulled us over. When Peter asked why he had been pulled over, he was told that he had been driving “too close to the center line”. A bus driver, Peter had naturally kept his driver-side wheels consistently close to the middle line when driving carefully.