Actually, I was able to call and have my delivery address changed to Texas. I'm going to be temporarily relocating there for work, but I have a house in St. Louis. Once they changed the delivery location, I had to go into the app to change my "home" address.
For the most part, it looks like Tesla is going down the queue starting with December 2023 orders with some exceptions. Slowly getting around to January 2024 orders now.