Kiwis on Facebook praised police's sense of humour.
"Well done NZ police. Love the sense of humour," one Facebook user commented.
"Absolutely brilliant," someone else said.
For others people, the post led to some revelations about none other than Thomas the Tank Engine:
"Omg so is it possible that in Thomas the tank engine. It wasn't the fat controller but the fartkontroller. Meaning he controlled the speed of the trains and not the amount of pies in the warmer? Mind blown!"
Others offer some other Scandinavian language trivia: "In Swedish a speed bump is called a 'Farthinder'," one person commented.