"Lady," said the officer, "your slow driving is almost as dangerous as
speeders. You need to try to keep the speed limit".

"But I always keep the speed limit," replied the lady.
"I was doing the speed limit when you stopped me".

The officer asked, "What do you think the limit is on this road ?"

The dear old lady said, "I just a moment ago saw the sign, U.S. Highway
22".

"But lady," warned the officer, "that is the highway number, not the speed
limit".

The lady was very apologetic and, of course, no ticket was given.

The officer noticed that all the passengers seemed pale and had a
frightened look in their eyes. As he turned to leave the car, wondering if
his presence had been the problem, he turned again and said to the driver,
"Ma'am, are you sure all your passengers are OK ?"