I actually had to Google it when I got home and found out that it’s the part of a national campaign designed to promote seat belt usage.  Which I’m sure you realized immediately, but for some reason didn’t occur to me at all.  I don’t know where my head is at lately. But I was disappointed to solve the mystery, and kind of wish I hadn’t bothered.  I think I liked the sign better as a strange, glowing non-sequitur--a little bit of surreal poetry beaming at me from the highway. Like when someone asks you to pass the creamed potatoes, but you’re only half listening and so you only hear “Please know that I often dream of tornadoes.”