I had a friend who got a frantic call from one of his daughters one night that she had driven into the river, water was up to the windows, and didn't know what to do. She'd driven over a small bridge in a park over to an island to drive around the park. It was cold and snowing lightly. When she returned to turn onto the bridge, she didn't realize it was the boat ramp, not the bridge. She turned and drove through the snow covered skim ice. Then, she told him the wrong island. He sent the cops to where she told him she was, and she wasn't there. No one thought to check the other island. By the time he figured it out and drove to the correct island, he found the car, but she wasn't in it. Fortunately, the car hit the bottom and didn't sink further, she climbed out, her phone died, and she walked to a nearby house. They gave her a blanket and let her use their phone. All ok. Could have been a lot worse.