I joined several groups in Facebook but they are in Spanish. I get some news and a lot of pictures of houses, food, and landscapes photos. Most are about pride to be Puerto Rican or religious.
You may not have time to move your car. In that video they were stopping somebody from going down to move a car and another to save a pet because it was happening fast, like the piece of the wall that gave out and the big influx of water that resulted from its collapse.
Find a good place to live with a little altitude and away from a river or beach. If your place is at least 200 feet above sea level you are not likely to have issues. My place is 1000 feet above sea level, now I just have to worry about a mud slide with my house leading the slide. 