[Keep driving.
At worst a one ton or more projectile (car) you can steer beats a battery.]
It always surprises me how few people reaize how dangerous a weapon their car is. Even a little car. It used to drive me bonkers in the 70's when you had those biker movies, where the big bad bikers would chase a family in a station wagon, beat on the hood with chains, and force the car off the road.
An 1800 pound VW beatle is a leathal weapon.
Now cars have become cult worship object status symbols that they don't want to geta little scratched or dented up. Bad guys count on that.