I would say the cop made the wrong choice, the charges have been dropped! In the end he’ll probably be having a career change as well.
This driver didn't sign so I guess he can be arrested. But we all know officers can create a situation in which you're in a corner and you will be arrested if you don't shut up or toe the line. In my opinion the officer acted too abruptly and helped the situation along that led to the taser and the arrest. The driver was too determined and didn't realize the officer drew a short line.
No they won’t. Do you know what it takes to fire a cop? They’ll send him to “further training” and a month from now, it’ll be like it never happened.