Pull over please driver.

Last evening, my friend Sue and her son came around for a visit. We were chatting about things, and the subject of the Christmas lights on people's homes came up. Neville took me around town on Saturday evening to have a look at them, but the ones we found were not very spectacular, with a few exceptions. Sue had offered to take me to see them, and I reminded her of that. She said we could go for a drive to see if we could find any others. We went all over town but were disappointed at the lack of displays. Some of the light glowed so dimly, it was a mystery to us why they bothered. We were heading back towards the town from what is termed 'Snob Hill,' and there was a car coning towards us. His lights seemed to be dipping up and down a lot, and we wondered if he was being stupid or whether the car was bouncing in the uneven road. As we drove past,( and Sue was not speeding,) we were very surprised to see it was a police car. He did a u turn and followed us. Then he flashed his lights, so Sue pulled over. We were puzzled as to why he had picked on her. When the officer came up to her window, he had a breath tester in his hand. Now, Sue does not drink.
He recognized Sue when he looked in to the car, and said, "Hullo, it's you Sue Got the family with you,eh?" "No, just Paul and a friend." He got her to 'blow in the bag.' and she blew so hard she nearly broke it. It was the sarge, and he knew it would read nil, but had to proceed. As we drove off, I asked her why he would have pulled her over, and she said probably because it is an older car, and older cars usually mean hoons. I said that did not make sense as she was not speeding. She was probably only doing 35kph, which is the speed limit around the town. We had a good laugh about it.