My completely unsubstantiated impression...
He quit smoking using e-cigs, made a big whoop-dee-doo about it, then started smoking cigarettes again. A fan saw him and asked why he was smoking (this part appears consistent in the longer reports)...and he lied. He made up a story about why he was smoking again. Perhaps he exaggerated a bit (he's creative, ya know) and might even have been drunk or something (what do I know?). It just seems like a story someone made up on the spot without thinking about how stupid it sounded.