For God's sake, though, just look around if you find yourself climbing or descending abruptly for no good reason. Pickle everything off and level the flight with a reasonable power setting.
You don't seem to understand what occurred. By pulling back on the sidestick that should have disconnected the A/P but it didn't. So just "pickle everything off" was not a solution. You can't level off and comfortably assess the situation when the aircraft, reacting to inputs from faulty sensors, is not responding to the pilots inputs. I agree with those who say well done that crew who were writing the procedures for an OEB that had not yet been produced. Even Boeing states in their manuals that sometimes the experience of the crew will be necessary to recover from situations that are not covered by the procedures.