While they're in the car, Charlie hands a birthday card to Jake and he takes it. After Jake taunts him for being a wuss, Charlie AGAIN gives the card to Jake, who AGAIN takes it, even though Jake never gave it back after taking it the first time.
Charlie pulls away in his car curving to his left, away from the curb. After Charlie hits the police car, his car is now facing toward the curb.
When Charlie rear-ends the police car with his Mercedes, the air bags in his car do not activate.
Chelsea wouldn't be wearing her high-heeled shoes to take her dog for a walk.