Despite police giving Ms Kupa, who performed her streak in nothing more than a woolly hat, a pre-charge warning for disorderly behaviour, she remained optimistic about becoming an officer.
"I'm still trying to join the police," she said yesterday.
The delivery driver was also trespassed from McLean Park for two years, and is thankful she "got off lightly" as police declined to proceed with a prosecution.
To join the NZ Police you must be a New Zealand citizen resident, be at least 18 and fit, while also notifying recruitment staff of any previous criminal or traffic convictions, including warnings, court appearances and diversions among other requirements.
Eastern District Commander Superintendent Sandra Venables has stood by the decision not to formally charge Ms Kupa, who has been a part of the Hawke's Bay woman's rugby training squad.
In response to allegations Red Badge security members were dismissed as a result of the streaking incident, the company's chief executive officer (CEO) Andy Gollings said he was "unable to provide any response at this time".
Asked if he was investigating how staff performed during the incident, Mr Gollings said: "Obviously with everything we do we look at how we could do it better, but I'm not able to comment on this matter."
Ms Kupa said she would feel "horrible" if a staff member had been sacked as a result of her naked actions.
"I feel privileged to be able to keep my job," she said. "I didn't intend to hurt anyone."
Footage of the streak shows the security guard closest to where Ms Kupa seized her moment of opportunity passing a rugby ball to a ball boy after Argentina had kicked for the touchline.
Westpac Stadium CEO Shane Harmon said no extra security was hired for the All Blacks v Springboks match on Saturday in Wellington.
However, he said the stadium did employ the "pitch invasion squad", a team of six who wore tracksuits and rugby boots, and were responsibly for stopping and apprehending streakers.
The pitch invasion squad is deployed for any big event at the stadium as are more than 200 security members.
Police said they would also be keeping a close watch on the field and the crowd for Sunday's Ranfurly Shield challenge match between Hawke's Bay and Otago at McLean Park.
The New Zealand Rugby Union (NZRU) and New Zealand Police also yesterday released a joint statement warning of consequences for pitch invaders.
NZRU chief executive Steve Tew said streakers were ultimately a matter for police.
"However, it is important to remind people foolish enough to think about trying to take to the field - clothed or not - they are putting their own safety and that of the players at risk."
New Zealand Police Commissioner Mike Bush warned there were "potentially very serious consequences" for anyone trying to take the field while a match was in progress.