Before he left home he called 111 and told police communications in Auckland the little he knew about the crash and told them he didn't know if anyone had been hurt.
When he later called to ask if emergency services were on their way, he said police had told him they were "a bit tied up". In a third called he said he'd collected his wife, daughter and car, the road was clear of cattle and he would report the accident to police in Whangarei on Saturday.
Mr McKay's indignation over what he perceived as police ignoring the crash increased when local firefighter friends said they should have been called out to deal with the cattle, which he heard had been back on the road later that night.
He said an agreement had been reached with the cows' owner to replace the damaged Corolla.
Whangarei police Sergeant Stephanie Hudson said police notes of Mr McKay's 111 calls first recorded "the cow had left the area" and after his second call said: "The informant has a trailer for the vehicle."
After his final call it was recorded police could stand down as "the informant is to tow the vehicle home and report to the station".