Car Thiefs

Spoiler

A guy that I work with had his Mercedes SUV swiped from our work parking lot after he left it overnight...

When reviewing the footage from the parking lot cameras, the thief was seen during the night getting out of a black Suburban that drove him into the lot. The perp got out of the passenger door and walked over to the Mercedes and bent down and reached under the drivers door by the frame and grabbed something. He stood up and promptly opened up the door, got in and drove off.

When the local police were shown this film, they informed my buddy that thiefs are putting a magnetic case under car doors that holds a keyfob that records your key fob frequency each time you press your fob. So the thiefs can drive around and find a car they like, slip the device under it and then come back a few days later, reach under and grab their "special" fob and open the door and fire it up and drive off...

HOLY CRAP.... I searched the internet and read quite a bit about how easy todays keyless cars can be jacked... HOLY CRAP...

Anybody hear of this, or have devices installed to guard against something like this from occurring?

(I work in Greenville, SC in a nice area, or so I thought...)