It says he was with a lady friend, but got in the cab alone. Guess he was kinda P.O.'ed at how the evening was going. I put a fist through a wall when my first fiance dumped me. Emotional turmoil does not lend itself to rational thinking.
There was no mention of drugs in this article. Go back to alt.flame if you want to hurl insults.
Actually, he's been pretty vocal about his drug use and the legalization of drugs in the US.