I would simply take a different route if my GPS told me to take Zombie Highway.

Vehicular zombie slaughter

A very simple survival game that's pretty insubstantial, but it's kind of fun. You drive along a highway and zombies jump on your car, forcing you to shoot them off or graze obstacles to peel them off. What's here is a bit messy and there's not a lot of it, but it's kind of fun anyhow.

The best of the "infinite runner" games -- highly addictive.