They spent six hours at hospital with them on Wednesday night, before flying back to Auckland the next morning.
At the hospital, Lee says they were unable to engage in conversation with the woman because of the severity of her injuries.
"She kept saying it was painful, that she was in pain."
Lee says he drove the couple's vehicle to their accommodation in Hastings and picked up clothes and the woman's laptop.
He said the couple had flights booked to Australia, where they were going to spend time before flying home to South Korea.
"She cancelled everything. She cancelled the airplane and the Australian tour, as well as the return South Korea ticket, Lee said.
It is believed their visas will expire by the end of this week, or early next week, Lee says.
Immigration New Zealand Manager Visa Services Michael Carley said they have sympathy for visitors facing adverse and in this case traumatic experiences.
"In general terms, when adverse conditions impact visitor's ability to be able to return to their home country as per the terms of their original visa, INZ will consider each individuals circumstances on a case by case basis and view these applications sympathetically."
Carley said they encourage anyone in this situation to get hold of INZ to discuss the best visa option for them.
"The Korean embassy could also provide consular assistance if required."
