No, but in West Hollywood it was passed as low priority. At a few bars in that area they will let you smoke out on the patio but I dunno about the walking around while tokin part. I just dont care and do it anyway if there's not a cop around, haha.
I Looove LA
In Canada its commonplace but not legal. If you fuck around and piss off the cops they will cite you for it but otherwise you can walk thru downtown or major streets etc (in Edmonton). smoking a joint and you might get a few funny looks but its all good most of the time