He has been charged with dangerous driving, failing to stop to ascertain injury and drink-driving.
In the second incident, about 1.30am today, a 29-year-old Queenstown man crashed into a ute parked in the driveway of a Thompson St property.
Sgt Newell said the man failed to negotiate a right-hand bend, drove over the kerb and through shrubbery before hitting the ute.
Front and rear seat passengers in the alleged offender's car suffered minor injuries, and both vehicles were extensively damaged.
The man will appear in the Queenstown District Court next month on two charges of careless driving causing injury and one of drink-driving (469mcg).
Sgt Newell said the incidents arose from people making "bad choices".
"They need to think about how they're getting home. Call a taxi and get home safe."
The financial cost and disruption to the damaged vehicles' owners was "totally unnecessary", he said.