"I'm going to go crying to the media. Oh wait, they had a camera? Time to disappear."
What a joke. I hope they follow through on the charges on this woman if for nothing else than the smear campaign she tried to launch. The cop was completely justified. Sure, he probably could've subdued her without the tazer, but that was by far the safest option. Any type of physical confrontation could easily lead to either of them stumbling backwards into traffic. Even if that doesn't happen, any type of struggle could easily lead to some broken bones for a woman that age. Yeah, a fall from the tazing could do the same thing, but coupled with the risk of traffic, that was the right way to go.
Oh, and then there's that minor detail that he warned her multiple times.