How to open a car door using a cell phone and a keyless remote control (Faux-To?)

What if you forgot your car keys and the keyless remote control tied to them, how are you going to get into the car? Well, if you haven't forgotten your mobile phone, you can also call someone who has access to this keyless remote so you can unlock your car or truck with a wireless mobile phone! Which?!?

Yes, supposedly with two phones and a keyless remote you can unlock your car if the person who has the remote presses a button on their phone's microphone which transmits sound to the cell phone of the person in the locked car, thus opening the door from - for the radio signal.

Okay, this sounds funny. Fake? But is it? You will be the judge. Whether it's real or not, one thing's for sure - it still won't help you when it's time to drive home.