I seem to have been left out of the loop on this one. I've yet to receive my shiny brochure, and the first I heard of the new requirements was by way of conversation with another pilot, around 25/03, some fifteen days after the requirement. I have yet to be approached for my misdemeanour.
My aircraft lives behind a chain fence and is protected by armed members of the APS. $150 for an aluminium tube and a padlock to lock the throttle. No thanks.
I've also seen locking wheel chocks that don't actually lock to the wheel but simply lock together. One only needs a couple of burly terrorists to lift the nose\push down the tail and slide the lock from beneath the nose wheel.
I for one will continue to implement my usual security measures.... I tend to leave the keys in the unlocked aircraft. This saves the 50 minute return drive home on the odd occasion I have hurried out the door sans keys.
Two Dogs