Informally, they do not ticket you if you are not causing an obstruction.
Hence I can look out on to Featherston street and see 5 bikes parked on the corners of the street. All of which are less than 6 m from the junction.
You can also get away with parking almost on top of a fire hydrent (if you dont use the steering lock).
If you really want to push the boundries you can get away with most of the above by carrying a bit of card and some tape. When you park just stick the card over your number plate. The poor unfortunate traffic wardens are not allowed to touch your bike (or car) so if they cannot see the number plate then who will they bill? On the other hand they may get the bike removed (if causing an obstruction) or ask a copper to remove it, in which case you will get done for obscuring the plate.
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