Awesome! Looks like a great trip!
Your photos of San Cristobal and the beaches in southern Oaxaca are killing me! Mexico is such an amazing country, I can't wait to get back!
Also, we had the same exact experience crossing back in to the states. Border patrol wanted to know how we could have afforded it, and acted amazed that we didn't run into any trouble. When we asked the guards how much time they had spent in Mexico, the whole group said they had never been.
Thank you very much for the report and photos!