Yeah, seriously. Anyone who's ever driven in SF should know this city is not going to be underwater (well, mostly). There are hills smack in the middle of SF that are > 200 ft (~60 m) high[1].
Meanwhile, to pick a random example, "Much of Florida has an elevation of less than 12 feet (3.7 m), including many populated areas such as Miami which are located on the coast."[2]