The car on the right is a cop car and the car on the left is just a regular, traveling car. They pull over and stop because the dogs are arguing. Molly and Jason are fighting over who is suppose to have the last biscuit. It's not so much that it's the last one but rather that one wants what the other has all the time. They're traveling home and are in New Jersey and don't want to get out of the car because of all the traffic in Jersey. They decide to get out in a park and run around and they forget about why they were mad in the first place.