Man you just opened yourself up to all kinds of jokes and ridicule, but I'll hold back and just say that you're lucky you didn't run into something. I don't think I have ever seen an actual spelled out bright indicator.
1953 Chevrolet 3600 Fried Green T'mater (Vern) In the Stovebolt Gallery Caution: Political Statement Man who runs in front of car gets tired, man who runs behind car gets exhausted.