And the sign said "Go round 24-38 miles per hour" in bright red LEDs that moved.
So the following traffic cleared the next lane
and went on to pass without pain.
Imagine that.
Wow, that's such a great idea. I've seen it talked about before, but this is the first time I've seen a scrolling sign used. It probably saves so much frustration for you (and other impatient drivers!).