The women were fined $250 each.
"They are a good example of the changes in action in Queenstown. Extra powers for police gives us a wide variety of tools to deal with offences and the people who offend," Mr Watt said.
The only other alcohol-related offences in the Wakatipu area over the weekend involved alleged 18-year-old male drink-drivers. Police issued their first infringement notice for breaching the Oamaru liquor ban, a 20-year-old Oamaru man receiving a $250 instant fine for having alcohol in Thames St about 10.20pm on Friday.
Despite a busy Friday night in Wanaka, and a large number of Christmas functions, police had only a couple of minor disorder-related incidents to deal with, Constable Dion Phair said.
"On the whole the word's starting to get around [the bars] and people are being refused entry because of intoxication levels...
"I think the general behaviour's been pretty good and it seems like the duty managers in the pubs have been on board with it as well."
The new laws gave bar staff "more ammunition" to deny people entry or service, Mr Phair said.
"The definition of intoxication and the ability to identify who's intoxicated and who's not has been more clearly defined for both us and them."
St John Ambulance southern region operations manager Doug Third said Friday night was relatively incident-free in Dunedin, but it was too early to say what impact the new alcohol laws were having.
However, any measures which reduced alcohol-related harm and made it easier for emergency services staff were a good thing, Mr Third said.