I agree with you, but also feel that the slogan is funny.
Like JRBC, I am also more tolerant of that kind of stuff but really it's probably not appropriate.
Im not saying that its not funny, I think the question is, is it appropriate? And its not. Both my boys, when they were learning to read, would read whatever we passed on the road.. Not sure I would have liked it if they started reading that stuff!! LOL
To each his own! :o)
MM