Turn on Headlights in the Rain?

What’s with those highway signs that indicate drivers must turn on headlights in the rain? It’s true, Florida law requires that drivers turn on their headlights in rain, smoke and fog. See Florida Statute 316.217(1)(b). Even if your headlights are set on automatic, when driving in the rain – or smoke or fog, make sure they are on! http://ow.ly/ywiN4