The same thing applies to a mercy flight, you have to justify why you busted a rule in order to conduct that operation. In any case anything in these areas would classify as an immediately notifiable event via the ATSB as well.
All I can say is that if you do have an emergency where you have to break normal rules and as a result somebody takes interest in the event in a legal sense. Get a good lawyer, quoting CASRs or AIP references will not cut it especially if there is a financial claim involved where somebody has been injured or property lost as a result.