Did you guys watch the same video I watched? Sure, the driver was stupid to be arguing the merits of a ticket and refusing to sign, but watch the tape from the moment the officer told him to get out of the car. The officer walked directly to his car, laid the paperwork on the hood, and reached to his left hip and pulled his taser and cuffs *as* he was saying for the *first time* to "turn around and put your hands behind your back". He was pointing the taser at the guy *before* the guy started back to his car. It was in response to being targeted that the driver said "what the hell is wrong with you" and started walking away. When his wife jumped out of the car the driver was telling her "run, run".
It was kinda hard to hear all that was being said when the driver was in his car, but it sounded to me that as soon as the driver said he wasn't signing anything the cop said get out of the car. Seems to me the cop could have explained the alternatives, either sign or be arrested, rather than proceeding straight to arrest. I doubt the cop is a bad guy but needs to be a little more patient with the dumb ones.