The Harbourmaster, an authority that falls under Auckland Transport, would only remove the vehicle if it was a threat to shipping, pollution or safety.
A spokesman for Auckland Transport said it was not a threat to any of those things, despite the emergency calls it was sparking.
"[The Harbourmaster] has talked to the vehicle owner and reminded him it is his responsibility to move the vehicle.
"Auckland Transport will not be removing it at this stage, it would cost ratepayers around $5000 to remove it."
In April a Range Rover Evoque - worth $90,000 - got stuck in the sand about 200m off the beach. It had to be towed after remaining stuck overnight.