Well, the standard definition of god is that he created everything. Since it is not within the laws of physics to create something out of nothing, then yes, by the standard definition of god, he must be able to defy the laws of physics.
You might find the study of physics interesting. Here’s a question for you concerning the laws of physics.
How is the universe larger than it could possibly be, if it followed the most important law?
As matter approaches the speed of light; its mass become infinite.