no thanks. pervasive surveillance is bad enough already without the requirement that the surveiled pay for the hardware themselves.
that said, the risks are not to be taken lightly. even if the recording is only stored locally, it can be seized by authorities or subpoenaed later. you can't guarantee it will only be used to settle minor traffic disputes.
like I said, I'm (mostly) happy to make that decision for myself. but having the government require people to collect evidence against themselves is a hard no from me.
Not an expert on US constitution, but Isn't that a violation?