That was until Countdown Waitangi and the Waitangi Treaty Grounds came to the rescue.
While Treaty Grounds staff brought in a barbecue and tables, supermarket staff delivered more than 500 sausages, 30 loaves of bread and bottles of tomato sauce.
The supermarket also donated all Friday's hot roast chickens.
Customer service manager Bruce Cairns said the chickens had already been cooked but there was no one around to buy them so a staff member — with a police escort — went to the store to fetch them.
They also handed out bottles of water while the Paihia Fire Brigade supplied sunblock.
Treaty Grounds boss Greg McManus said before the barbecue hot and hungry evacuees were "getting antsy and starting to leave".
The tsunami threat was lifted shortly after the evacuees had finished their free lunch.