It was as undesigned as possible.

Michael Bierut

• Chaban, Matt. “Sign Language: Michael Bierut Dissects His New Parking Signs.” Observer, Observer, 16 Jan. 2013, observer.com/2013/01/sign-language-michael-bierut-dissects-his-new-parking-signs/. 
• Michael Bierut (b.1957), Wikipedia