yeah i bought mine in NWS and got RWC here (in QLD) and got it easy - guy even told me how clean and impressed he was - but yeah - sure there are things thats aren't legal on it
as for the tyre shop - yeh they dont care at all hey - one tyre shop put some on my ex's car so the wheels they sold her fitted!!
i dont think so - i think the suspect the forces became too large for some of them - they snapped - and once they were gone the others went
but yeh - who knows