Yep, those pesky laws of physics. There is no creation without a Creator.
Exactly. The typical rebuke (usually used by unintellectual atheists), is the question of where did God come from? Who created God?
I then have to explain that the laws that govern our universe, would not govern a being who transcended our universe. Though the theory of infinity can only ever be a theory within our laws, it would not apply outside of the universe, therefor God can certainly have existed infinitely into the past, and will exist infinitely into the future.