I forget to post yesterday about something that I learned. Apparently, some/all municipal authorities require houses to have bomb shelters and have them stocked with beds, food, etc. I learned this while drinking with some of the folks after the workshop.
If this is true, then Switzerland makes a logical destination in case of a Zombie outbreak. Not all shelters will be adequately prepared, but you are far more likely to find one there than anywhere else. Plus the cold winters should be quite helpful in slowing down the onslaught and providing some relief.