Two weeks ago my son and daughter and I left her car at Unicoi Gap and got a shuttle to Amicalola Falls to start a week long hike. I got back to the car on Wednesday to find that someone had ransacked it. They dumped everything out of all the compartments. spilled her makeup bag and clean clothes for the trip home onto the floorboard. The also took my clean bag and my sons. The car had no visible signs of entry and was locked. In talking to law enforcement it was decided that the thieves had a code breaker hidden in one of the 20 cars parked at Unicoi that Saturday afternoon. It picked up the signal from her key/car and stored it until they came back to see who they could rob. Thankfully they got nothing of any significant value.
If your not familiar with the technique of code breaking, check it out. It's all over the internet.
Be sure to remove valuable from your vehicle before hitting the trail. The thieves are watching.