Stop and help them.

You screech to a halt in front of them. Despite seeing them late you were travelling slowly so were able to stop in time. The figure is hunched slightly but skin seems normal, not green or anything, clothes tattered but not to bad though they are still facing away from your car despite how close they got to your car.
You unwind your window and call out to them, not loudly but they can't have not heard, after still no response you do quite possibly the stupidest decision of your short life and exit the car and put your hand in your shoulder. In your final moments you get the chance to look back at that moment of naïve insanity as the zombie's teeth rip into your neck. You don't even become a zombie you just get eaten on the spot, the highlight of your remains is that a ownerless dog eats part of you and {girlblonde}'s zombifyed self also takes a bite.
If only you could've gone back in time and not been such a fool.