On the contrary, deer and large boar would be gone in months, if not weeks if such a situation arose, even in rural areas. Most of North America's large game lives in cities. That is how it would go down, we aren't that different from rats. The enjoyment we derive from speculating about these situations intrigues me. It is some sort of escapist fantasy that drives preppers and the posters on this poll (including me). While I am aware I am not immune, I have no idea of the underlying psychology of it.
I just noticed your sig. Quite relevant.