Massive parking fines inspired one Australian man to create an iPhone app that lets users warn each other when parking officers are spotted lurking near their cars. Last year alone, he paid thousands of dollars in fines. The final straw came when he was ticketed in his own neighbourhood despite a parking permit that he pays hundreds of dollars for each year. The app lets users "sign in" and report sightings of parking officers with a single push of a button. Cartoon faces wearing a police cap then appear plotted on a map of the area, along with a notice thanking them.