The call was made at 7.23pm on Friday and the mission was initially handled by Bay of Plenty rescuers until, with two helicopter flights aborted due to the conditions, it was decided to attempt the rescue from the eastern side.
The Lowe Corporation crew used night-vision equipment in initial attempts but was unable to fly into the immediate area because of cloud.
Mr Maultsaid said the couple were met in the morning by four trampers who had been at Manuoha Hut, and were helped into dry sleeping bags before the rescue helicopter arrived.
The two were taken to Wairoa Hospital about 9am on Saturday, and the man was admitted suffering from severe hypothermia. His wife was discharged after treatment.
Mrs Senior said the ordeal had been frustrating.
"I had a feeling the hut was very close but I didn't want to leave my husband," she said.
Her cellphone had poor coverage and she knew they were waiting for a chopper.
"We knew no ground team could get access to us so it was a bit disheartening knowing we had to wait for a helicopter."
She said she would put the incident down as a learning experience: "Some things in life you enjoy and some you endure."
She commended the efforts of the rescue team and the response of a young couple who found them. "We have some pretty darn good people here in New Zealand."
Mrs Senior said that snow melting off the trees had caused her husband's hypothermia.
"It was not a matter of fitness as just last year we biked from Cape Reinga to Bluff."
She will not let the experience deter her from future tramps: "We won't let it beat us."
Rescue helicopter pilot Charlie Beetham said snow caused visibility issues and meant the crew was unable to land on first attempt.
"Once the weather cleared it was just a matter of us getting to the trampers before the cold did."