So if it's established as unconstitutional, couldn't you file a criminal complaint of official oppression against the members of whatever government approved the cameras since they are levying unconstitutional fines?
You could file a civil action for violation of constitutional rights, but under Roberts, SCOTUS has basically been ripping out all of the mechanisms that would let you file such suits.
You can file with the police, if they take it. You can also file as a private criminal complaint in many jurisdictions. However, it's up to the DA to approve it most of the time. There can be an appeal process where a judge would make a determination.
But yes, if the whole system is corrupt, then there's not much to do.
Georgia and a handful of other states absolutely allow this.