Although she couldn't do coffee sales, Telfer said she was happy with business today.
A spokesman at the Whangārei Rockshop that sells musical instruments also reopened after the alert level was downgraded and said Fridays were their busiest day.
"We had one or two pellets of freight due today but I am not sure they will be arriving now. But at least we are lucky we've been able to open. Our chain of shops in Auckland are trading but have their doors shut."
Owner of Shiraz Indian Restaurant on Walton St, Jas Singh, said he would open his business for dinner from 4.30pm but was unsure how many would turn up.
"It depends whether people will still come into town. They may have made other plans. Business is usually slow after something like this," he said.
Pak'nSave Whangārei reopened at 2.45pm and owner Todd Leathem said all staff returned to work.
"We have a pretty awesome team and they rang to come back to work and they pulled together during yet another potential disaster," he said.
He said despite the disruption, the supermarket would close at the normal time of 9pm.
Northport spokesman Peter Heath said it would be up to the companies working in stevedoring, freight, and import and export at the port to decide when their workers would return to work.
Operations at the port are run 24 hours a day.
Staff and contractors at Refining NZ were evacuated following the tsunami alert and are scheduled to resume work tomorrow morning.