I don't know if this will actually work but I guess it's worth a shot, right? Someone came up with the idea to use a SQL injection type hack against image/text recognition camera systems used for speed and red-light cameras. If the syntax is correct and the input data not filtered properly, it's possible to actually hack the system running this database query and alter it in some fashion.

Wouldn't want to be the guinea pig on this, but it would be interesting if it worked!