Often the simplest safety measures are enough to keep you out of trouble at a rest stop. When you pull in to a parking place, don't linger in your car. Closed up inside with the music on, you can easily become oblivious to your surroundings, giving criminals the time and opportunity to target and confront you. When you get out of your vehicle, lock the doors to prevent theft. Also, try not to enter the rest area facilities alone. If you're traveling with young children, see if a family restroom is available. Even older children and adults should have someone accompany them to the restroom or wait for them outside.