like jumping up and down trying to get her excited because she was all sorts of exhausted from the trip. >> aaron's antics are caught on the gas station security camera. it's cold outside. about 30 degrees. so mom and dad decide to keep the car running with the heat on to keep their baby warm. >> and we're standing right there. took a couple of steps away. couldn't hear what my mom was saying so we didn't want to walk away from the car. so just took a couple steps. >> and that's when it happens. melanie and aaron step out of the camera's view just feet away from the car. and as you can see, an unidentified person steps into view. it takes only nine seconds from the time melanie and aaron step away from the car until the unidentified person is opening their car door. and five more seconds before he pulls away with little 6-month-old samantha in the back seat. >> my mom yelled, that guy is trying to steal your car. your child is in it.