As was mentioned, unless a creature has some sort of protection for the inside of its cells, the freezing process (especially a slow one like a house hold freezer), will cause irrepairable damage to the creatures cells and thus kill it. I use freezing to euthanize my fish and they never come back to life when they are defrosted.
There is a reason that you have to use supercold liquids like liquid nitrogen for doing cryogenics. It is to avoid the creation of sharp crystals in the cells. Being air cooled will not cut it.
There is a reason that you have to use supercold liquids like liquid nitrogen for doing cryogenics. It is to avoid the creation of sharp crystals in the cells. Being air cooled will not cut it.