I have done this too, about 4 years ago. I was about 100 yards away from my car (a mazda 3 at the time). I had heard about it before and decided to see if it was real. Told my GF to walk to my car and call me, then asked her to check me doors and they were locked. So I tried to unlock them from where I was, and nothing happened. I held the fob close to the phone and tried again. To my amazement I saw my lights blink and heard the horn, then over the phone she yells 'Your car unlocked! Howed that happen!?' I later banked on the fact that I was now a magician.
