Scammers have been using fake parking tickets to get people to visit malicious websites.

Cybercriminals took their malware to the streets in Grand Forks, N.D., where some motorists recently found parking violation notices on their windshields instructing them to visit a URL to view photos of their purported infraction. The phony parking tickets contained a malicious URL that requires them to download a toolbar, which is actually a Trojan.
The "toolbar" shows photos of parked cars in the area; the user is prompted with a pop-up with a fake security alert, attempting to lure the victim into installing phony antivirus software to clean up their machine.
That's a new one on me, although the malicious website and trojan bit is old hat.