Somehow my Costa Rican bags got sent to Guatamala. I got a push notification letting me know they were at baggage claim waiting for me. Sadly, wrong country.

The only thing that may be of interest as a random data point is the frequency of lost bags on a normal day. They re-opened my claim with a new "ATLBA..." reference. The number increase suggests up to 9 claims from ATL on BA in the past 24 hours.