Black Lives Matter El Dorado County Adopt-A-Highway signs were vandalized about a month after the group joined the program. The organization adopted four sections of the highway, totaling 10 miles ...

An electronic highway sign is seen on Interstate 93 in Boston, Friday, May 9, 2014 (AP Photo/Michael Dwyer). Michael Dwyer/Associated Press ...

In this 2014 photo, an electronic highway sign on Interstate 93 shows the term "Use Yah Blinkah" in Boston. (Michael Dwyer/AP) It’s no joke. Humorous and quirky messages on electronic signs will ...