Like some of our visiting team posters confirm regularly, "perception is reality." As such if Zimmerman's perception of the event's chronology place him in the right, true or false, culpable or blameless, i'd think the lie detector outcome would reflect his perspective and as such reveal no deceit.
Wisdom from a "QB Whisperer::
"No we have our FRANCHISE QB and I want to keep him rather than get 2 guys who may or may not be productive NFL players.
Palmer's situation is different and if I had my choice between Palmer and buttfumble, I'd take buttfumble"