I don't know if this is really the way it went down, but if it did, I'm sure the cop is really proud of himself. Yup, made himself a collar of a violent felon. Probably went home and bragged to his wife.
Again, if true, the problem for this poor sap is tha Christie has pulled out of the race. Now he's got about as much chance of getting a pardon as if Christie would turn down a box of cream filled donuts.
Also just shows the stupidity of being "honest" with New Jersey cops. Where you are going or coming from is none of their business.