It’s street art and perhaps it’s all ok to do, I guess. This piece is by a group, UpsideUp and ask Museum Director Jay Xu who just said “go and paint our walls.” Hear that? Bay Area graffiti artists are notorious and strong. Aerosol on the walls? Maybe he didn’t want to say this.
Museum Director Jay Xu says: “It’s a great thing that our museum is in such a dynamic neighborhood that artists choose to use our wall as a canvas,” said museum director Jay Xu. “We will keep it there as long as it lasts.” (SFGate - Jay Xu)