As the others have said, just learn what you can from the experience and drive on. It sounds like you basically went off for one meal and maybe a bit more - then got right back into the next morning. I think Dr. Atkins is a bit fear mongering about his Induction warnings, but I think that is because so many people fall completely away if they slip just a bit. You didn't.

Also, the "end" of Induction is nothing magical. Most people have become pretty comfortable by the end of the two weeks and don't seem all that anxious to start upping their carbs, so it becomes a gradual shift as they learn more about their bodies.

Keep the Faith!