GZ,
I am as pro cop as they get... But from the interviews I have read it appears clearly to indicate he was compliant before the first zap.
I usually would say something flip like
"what, you expect me to believe that the guy was walking out after being ordered to and they just risked their jobs just so they could shock someone for doing what he was ordered to do?"
Problem is, this time it appears by all wittness accounts that that is just what happened.