This story made me smile, thanks.
I understand you qualified the team for protection training checking the obedience first. Not sure why you implemented obedience (sit stay) during agitation so early in the game? If the dog didn't have good potential that could be confusing to him and could affect the drive you're trying to bring out. With a really good dog though it's not a problem, but then you're skipping forward about 2 weeks of Koehler training. In any case that's the kind of dog I prefer to work with so great! Snap a pic of him with your phone if possible.