Except the dog didn't do that did it? Even when requested by a supervisor?
It was a pissing contest plain & simple and the cops wanted to prove they had bigger dicks.
and you know this how, again sitting in the drivers seat you cannot see a dog right behind your trunk so how would he have seen if the dog did or didnt?
dude, if the story is true, the dog didn't hit his car and they refused to show that the dog would detect anything. In other words, they just made it up as was apparent when he didn't get busted for drugs or anything else.
they refused to show the dog hit again, that doesnt mean the dog didnt hit the first time does it? again sitting in the drivers seat you cannot see a dog right behind your trunk so how would he have seen if the dog did or didnt? plain and simple he couldnt have...yea b/c a dog has never hit on something and it turned up clean

shit happens they arent perfect.
Its their word against his and by his own admission he refused questioning, refused to let the search, refused to get out of the car...