This is really quite common. I read an article about a car in Pittsburgh where a driver was similarly disguised in order to research specifically other peoples

This is really quite common. I read an article about a car in Pittsburgh where a driver was similarly disguised in order to research specifically other peoples reactions to driverless vehicles on the road. In the article I read, I believe it occurred in Pittsburgh, PA and the researcher was affiliated with a university (maybe Carnegie Melon?). The reporter was able to speak with the costumed researcher just briefly, but got a more substantive statement from the org doing the research.