Last summer a friend of mine was moving across the country.  He had a lot of things and did not know how he would get his car to his new home.  I offered to drive it there for him if he would fly me back.  My friend agreed.  I started driving early in the morning.  I had to go to a gas station to fill up and to wipe off the windows.  I merged onto a freeway and saw that there was hardly any traffic.  I set the cruise control and turned the music up.  I wasn't paying too much attention to the speed that I was going, and I passed a cop on the side of the road.  The cop got behind me and turned on his lights.  I pulled over.  He came to my car to explain that I had been speeding.  I apologized, and the cop decided to let me go with a warning. 
Question: Did everyone in the car wear a seat belt?
Yes, the driver wore a seat belt.