If we have to leave Auckland in a hurry to get home, this is part of what the government says (at 6 March 2021) on
(the rest is about different circumstances, as I read it).
To go to the person’s principal home or place of residence. (e.g. a person ordinarily lives in Auckland and needs to get back from another region of New Zealand, or needs to leave Auckland to get to their home in another region)
You must carry evidence of the purpose of your travel and the destination, this could include the following: