DoC Whangarei operations overseer Dave Bolland said that by the time the incident was relayed to the stand-by ranger the vehicle had been removed.
Mr Bolland said the operator did the right thing in notifying the Whangarei duty staff member about it, but the hotline was intended for reporting emergency situations such as fires, whale strandings and significant environmental risks.
Mr Bolland described Ruakaka Beach and the estuary mouth as ''a challenging area'' that often saw complaints arise over motorbikes, horse riding, vehicles, kite boarders, wind surfers and other beach use. There were signs in place warning that vehicles were not allowed on part of the beach, and DoC had signs up about bird protection.
''The department [DoC] asks all members of the public to respect the signage about vehicles on the beaches, and respect the natural environment and rights of other beach users, too.''
The Ruakaka River mouth is impassable by most vehicles at any tide.
Kev and Jeanette Wigmore, whose property overlooks it, said they had seen many vehicles come a cropper there, even at the lowest tide.
''You just can't drive across there,'' Ms Wigmore said.
The couple saw the ute get stuck on Sunday and called the local fire brigade and the police and were told the vehicle's driver or owner had arranged to have it hauled out.