3.Yield To Bikes
Official Meaning of Sign: Yield to bikes when approaching the new lane. Unofficial Meaning of Sign to Us: Yield to people doing wheelies, backwards, into traffic.
4.Stop Don't Stop
Official Meaning of Sign: Stop and then, as you proceed, do not stop. If you are a commercial vehicle you can actually stop, though it says you can't, on the right side for 30 minutes. Unofficial Meaning of Sign to Us: Just slowly roll through, trying to load or unload for no longer than 30 minutes.