Yeah, I think ideally there is no citizen-citizen contact in this but inevitably someone is going to see someone snapping a picture of their car and react. I think as long as the citizen-enforcer isn't the final say on the matter it shouldn't be too big of an issue. Given that these interactions are taking place on our main thoroughfares I think the risk of violence is minimal. I'd limit it to bike/bus lane violations for that exact reason. We don't need neighbors on a sleepy Brighton side street taking things into their own hands because someone blocked a bit of someone's driveway.Part of me supports this idea wholeheartedly. The other part feels like this is a prime way to get citizens in a bunch of knock-down, drag-out fights with one-another.