I live in a country where majority of houses have walls, barbed wire, electric fencing and that's on one property. Most houses have barred windows on all windows and many residents prefer to have security gates on their doors as well as solid wooden doors. How much worse could a zombie apoc get?
Seriously though if by some miracle I survived my first encounter i'm heading home to leave a message painted on the wall in the code I have discussed with my brother, and then I'm getting to wherever the hell people are not to let the first wave of looting, rioting and murdering end. I'm more terrified of what normal people are capable of than being eaten by a zombie.