Hokitika police flagged down a tourist speeding through the town at 99kph on cruise control, on Sunday night.
It was one of several shocking driving incidents which have prompted a fresh crackdown on bad driving, especially targeting vehicles crossing the centre line.
West Coast police response manager senior sergeant Phil Barker said today police would target drivers this week who cross the centreline and otherwise ignore New Zealand road rules and conditions.
Mr Barker cited two examples from the past few days as proof something had to be done.
As well as sailing through the middle of Hokitika on cruise control, the overseas driver was also clearly "struggling" to keep his rental car in the correct lane.