I had a scary thing happen to me like this about a week ago, different yet similar. I was just pulling into my driveway after returning home from work. we have an automated security gate around our property which I did not close after I passed through because I was planning on running in the house and then heading back out. As I pulled into the garage and got out I realized that a car had turned into our driveway (the driveway is about 75 yards long from entrance to garage) they had their lights off, their window was rolled down half way on the passanger side. I heard a mans voice say "Oh **** its him not her get out of here" I hit the emergency button on my onstar and then tried to close the security gate but it is tempremental in the winter and only works close up, the car got out and I tried to follow but lost them about 2 miles away from my house. The police came and took down the info and told me not to count on anything. Three days later we saw the car parked down the road from our home with three guys in it. I called the police and they caught them. My wife says that she has seen that car in the area for about a month but just thought they were moving in close by or they were realestate agents or something. Come to find out they had been watching my house finding out our schedules etc. Good thing I let my wife have my car that day!!!