One of the key attributes of Omnipotence is the capacity to do absolutely anything and everything (i.e. Metapotence), so it stands to reason that Autopotence would have a key attribute of being capable of absolutely anything and everything involving themselves (like a sort of Self-Metapotence, or Self-Affecting Metapotence).
So really, I could ask you the same thing for Metapotence - if you were to gain Metapotence and then get shot in the head a second later, would you be able to survive?