I have to admit that I laughed at the video when I first saw it. I don't think it's something I would do, but I'm not in his shoes. He was deeply hurt by what his daughter did after all he'd just done for her and she had clearly dishonored her parents. He'd also tried grounding her and that didn't work. I guess he thought he needed to try something a bit more dramatic to get her attention.
As Robo said, the police investigated and not only found that he'd broken no laws, they actually commended him. I would imagine that they, like I, have had to arrest minor after minor and heard the whole "I respect my kid's privacy" garbage, not realizing that they are legally responsible for what their kids do with and on their property. The last time I heard that I was arresting a minor who was dealing drugs out of his bedroom...with drugs, paraphenalia, scales, cash, etc. spread all over his bedroom in plain view.
I have a teen son and what he does in MY house on a laptop I BOUGHT on Internet service I PAY FOR is my business and responsibility. If more parents had this attitude we would probably have fewer missing children, far less cyberbullying with devastating results, and other negative online activities.