During the coming and inevitable robot rebellions and zombie apocalypses, do you think the vampires will protect us?

I have been reading some statistical models about how many humans are necessary to support a viable vampire population. But in the chaos of doomsday, will vampires be able to organize quickly enough to save their food supply? They have been successful so far in keeping down the werewolf population, but will the same tactics they have utilized against werewolf infection prove as effective in a real crisis?