You push the door open with your elbow, before removing your seat belt. You will have to time this perfectly...
You leap out of the vehicle, landing on the asphalt two feet away from your shotgun. You have grazed both elbows, but at least you are alive. Now you swing the shotgun in the confusion, aim at the cars which had been behind you, each of which has stopped, and let loose several shotgun shells in their direction.
Now you need to run. Limping on your damaged leg, you let loose another shot every few seconds to cover yourself from return fire. Still, ten meters from the trees where you could loose them, you let loose another shot. Instead, all that comes is a click.
Your heart sinks as you realize what happened. You wasted your ammunition too early; and now the nearest cop puts four rounds in your chest.