Man, if I uploaded every violation caught on my dashcam to the police, they'd need to upgrade their servers.
Even if they cared, I doubt they would allocate the manpower to track down a single potential ticket. They're all about volume business, which is why they
pick a good spot and
start shooting fish in a barrel. Not that it's not galling to see what some people you share the road with get away with (texting drivers are my pet peeve), but usually the best you can do is just give them the ol' stink eye, or perhaps honk if they're an immediate danger. Anything beyond (e.g. :30

might lead to trouble.