Just to add to it, Vince agreed to it because Shane said he still has a stake in WWE, if he loses Vince gets Shane's share.
Ambrose takes GIGANTIC spots off Brock only to steal the win cleanly (as cleanly as you can in a street fight). I'm behind this 100%
I feel like the authority had him "arrested" once during his feud with Rollins last year. Then he returned at the end of the show in a cop car.