Officers were called to the disorder incident at Super Liquor Oamaru in Thames St shortly before 5pm, after a report a woman had become aggressive when she was refused service because of her drunken state.
A police spokeswoman said the ”grossly intoxicated” 35-year-old allegedly threw an eftpos machine and launched signage around the store before she abruptly left, only to return a short time later to deliver a barrage of verbal abuse.
With her was a 39-year-old Oamaru woman, who a police spokeswoman said drove the younger woman to pick up more alcohol after the pair each downed three 1.5-litre bottles of scrumpy cider.
The driver was given a breath-screening test at the scene, which returned a breath-alcohol level of 867mcg.
She was charged with drink-driving, immediately disqualified from driving for 28 days and is scheduled to appear in the Oamaru District Court on July 15.
The 35-year-old was detained by police and later released with a formal warning for offensive behaviour, on the condition that she return straight to Mataura.
Sourced from NZHerald