Here's an example how: Stores in a Berlin tourist neighborhood began opening on Sunday all at once. The council let them because it would be too embarrassing to fine them all.
They found a niche where the law says government has power, but Realpolitik says it does not.
I swear I'm going to find as many of those as I can in my everyday life, and I will use them.
Who's with me?????
I'm not trying to be defeatist, but you'd need massive civil disobedience Ukraine-style before NZ decides to soften its stance on "piracy" (or more properly, copyright infringement).
Massive civil disobedience is to the local council as hitting a home run on national television is to batting practice.
People may stick it to the Man in a personal way, but not collectively.
Your example of the businesses banding together isn't quite a Libertarian example, more like a Capitalist response of maximizing profits in the face of constraining government regulation.
If life was harsh, or the political institutions totalitarian or corrupt, then collective social revolution would eventually appear.
New Zealand is so far away from that type of environment that I doubt it will ever see the type of Libertarian activism that would be required to make lasting social change.
1. Lifestyles in NZ are good, and it really is quite a lot more egalitarian than the USA or UK. New Zealand ranks 11th in the world for Quality of Life Index.
2. Political institutions are not totalitarian or corrupt. New Zealand ranks the lowest in the world for corruption (equal to Denmark) in the Corruption Perceptions Index [http://cpi.transparency.org/cpi2013/results/].
This is about widespread ignoring of government, which is then forced to agree to save face.