One man who wants to remain anonymous posted a video showing himself driving around Manhattan with a device on his dashboard that makes a cow mooing sound signaling that your privacy is being compromised by something sitting right in your own car: your E-ZPass tag.
In a blog, the driver says he rigged this "cow" so it would go off whenever E-ZPass technology was being used. You can see for yourself: it's going off in the middle of New York City, nowhere near a toll plaza.
These contraptions, which reportedly went up citywide over the last few months on traffic lights, are what are reading your E-ZPass tag.
Former NYPD sergeant and FBI agent Manny Gomez says the technology is great if you're in his world: intelligence.
But the former head of NYCLU, Norman Siegel, says there are big questions about what is being done with the information in the name of security.
The New York City Department of Transportation admits the scanners belong to the department, but insist they are for studying traffic patterns.
"E-ZPass readers have been used for more than a decade to provide transportation agencies, the public and news services with vital information about real-time traffic conditions," the DOT said in a statement.