Dash cams seem like such a double edged sword to me. In Atlanta, average highway speed is around 70 when traffic isn't causing a slowdown. That's regardless of the posted limit. I've seen enough vids of folks capturing the zaniness around here, but I'm sure I'd somehow manage to record myself doing something stupid, or even just driving well over the posted limit but in the flow of traffic. Also, I'm sure they're set up where you don't have to fool with them, but generally anything with your hands on your phone is technically illegal in GA.