Update
Check this morning and it's in the system.
If you applied for both a U.S. Passport Book and a U.S. Passport Card on the same application, the newly issued documents, as well as your returned citizenship evidence, may be mailed to you in separate packages at different times. Therefore, it is possible to receive 3 separate mailings; one with your returned citizenship evidence, one with your newly issued passport book, and one with your newly issued passport card. It is currently being processed.
Your passport application locator number is XXXXXXX
What do I do with the locator number? Do they have a tracking system for it?