No. If you live in the United States you are free to travel to California without having to cross any border, so immigration laws do not count. I think in this case a valid drivers licence or similar form of ID is probably all you would need.
I think everyone is putting to much on King and we need to be responsible for our own things. They are doing a lot all ready for us. Do what you can to be ready in case you are one of the ones they choose. And remember to just have fun playing.
This is going to be my last day of playing, I was hoping to get a phone call to go to the live round, but I am to competitive and have spent to much money on this game, I have became addicted. I am sorry to King and the family. Have fun playing. Good luck!