I go ahead and wash them while frozen, let them dry and thaw, and see if they ooze. If they don't, then the membrane's still intact. I break them open from the side opposite the crack, and eat them. If they ooze, I feed them to the dogs.
If they froze all the way through, the yolks will gel, and won't scramble or run. But they're still ok hard cooked, or to feed to the dogs.