Wrong Wheel Locknuts put on car by Dealer!!!

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Five and half years ago I bought a new car. I had lock nuts put on by the dealer. In that time the dealer has changed the tyres twice.
Today,the car got a puncture and RACQ said "the lock nuts are illegal as they aren't tapered" .
When I took the tyre in to get repaired ,I asked the tyre shop ,if the RACQ was right ? and they are.
So, interesting !! if I had an accident, would I have been covered ???
Car now has correct lock nuts on it.