It took me WAY too long to realize that not only had Google Maps erred, but that there was a big sign in front of me which was a double-headed no U-turn sign which means that no left turn was part of the deal. I’ll forgive Google for not knowing that the next left turn was impossible because of construction but they messed up again when there was another no left turn sign. Great thing about public transportation is people don’t really notice or care if you screwed up your directions or stops.