what is there you don't know?
The teenager and friends were pulled over for "suspcious activity" which was later specified as their "car smelling like weed". Their car was stopped and they were told to exit the vehicle which they legally refused to do. They were then threatend with violence if they did not exit the vehicle.
What more is there to know?
So you saying up there if cops "smell weed" and say to exit the vehicle...you have a right to stay in the vehicle and drive off?