I’m surprised New York MTA hasn’t sued over this… (Taken with instagram)
Update: I’m sort of joking here. a while back the NYMTA sued a guy who made some satirical SFMTA/Muni t shirts online because they actually claimed any letter in Helvetica in a colored circle was theirs.
Needless to say, many other transit agencies, including the SFMTA, were NOT amused.
I’m sure this is legit, though.