Other countries have no issues with camera based traffic law enforcement.
Seems the way the law works is it needs some piece of two way communication. It doesn’t seem to work on a one way basis like it might in other countries. Maybe it is because most of our laws concerning technology are very much still structured for an analog world. E.g how in this case the old ritual of you being identified to have acknowledged the ticket by the cop writing it and handing it to you is preserved by you having to show you’ve actually received the ticket and consent to its validity viewing its status online.
This is only an issue because traffic code violations are treated like criminal acts instead of... code violations. We don't have this issue with parking tickets, there's no reason we should have it with automated red light and school bus cameras.
Answers like this are what drives the populace to support domestic terrorism.