I'm not a physicist, but I don't think Hawking is saying that the "laws of physics" created the universe. I think Hawking is saying that the universe, time, and the laws of physics are all part of the "Big Bang."
It is hard for most of us to understand this because we are used to "cause and effect." But quantum physics goes against everything we "know" in our everyday life. And the idea of a multi-verse which creates new universes is mind-boggling. The fact that the universe is expanding is mind-boggling.
I wasn't trying to explain astrophysics in this article. I was only trying to discuss Hawking's beliefs about God and religion. If you want to understand astrophysics a bit better, read Hawking's books or the books of other theoretical physicists or astrophysicists.