Does anyone know of an old NZ short film about a man convicted of murdering his wife, but who get's released from Mt Eden Prison on a technicality because of a law change which wasn't finalised until after a parlimentary luch break, so for 1hour it was not illegal to murder. He then went on to grow mushrooms underground queen street getting access via a telecom manhole cover because it was a lifetime dream of his cell mate. There is also another character who steels an ARC bus and takes passengers to wherever they want around town to collect the fares for himself.
It is a comedy genre short film.
What was it's title?