The Aussie Speeding fines letters and arguments would still apply:
Was the rule/legislation lawfully enacted?
With what consideration can I lawfully pay the debt?
Can they prove the photo has not been tampered with in any way?
Will the only witness, the camera, be testifying in court so I can cross examine?
Does the photo identify who was actually behind the wheel?
Does the court comply with the Constitution, i.e. chapter 3, has a jury of my peers?