first off , i sure as **** would not board myself up in a facility, they would somehow end up getting in and eating everyone..and ammo only lasts so long.
in the end you would starve to death or get eaten..
i would lock myself up somewhere, where i new there was multiple exits..plenty of food, perhaps like in dawn of the dead in a mall..
then i would wait it out, not be a smartass and try and take on zombies..if they came to us fair enough i would pop some heads, but after that lay low, to get the attention off whereever it is your staying.
although i think if that did happen, then us regular citizens would survive..its more than likely that our citys would get bombed to stop the outbreak.