Problem
As you're driving with your family on your annual road trip, you see a car stopped on the shoulder of the interstate. there are 2 police cars behind that car, with their lights flashing. about 10 miles down the road, you then see another police car sitting alone in the median between both major lanes of the interstate. You notice that your dad, who is driving, begins to slow down substantially. what is most likely the reason your dad began to slow down the car?