if one has consumed a near-lethal amount of alcohol, it may be possible to enter a very delicate state where your body will let you freeze to death without reacting properly

Straight death from alcohol poisoning is far more likely, unfortunately. There's another condition in response to a sudden shock of cold where the body's autonomic nervous system becomes interrupted so that the breathing reflex is lost -- if a person is unconscious and incapable of breathing voluntarily, they could asphyxiate. Anyone with a system so sensitive that the cooling action of a fan could cause this, though, would likely have expired long since from a random breeze.