As a result, we did miss the bus we had been planning on taking. Luckily, we found a different bus that managed to get us roughly to the same area, and made the right connection, getting us to the airport with just an hour until our flight. Luckily, Europe is much more lenient and it took mere minutes to get us through security and to our gate. All while never showing a single form of identification. We got a quick breakfast and coffee, boarded, and were pushing away from the gate 2 minutes early.
The flight to Warsaw was FAST - and we landed early as well. Apparently, you can travel between Germany and Poland without identifying yourself or going through customs. We found the info desk, got directions to our hotel and purchased a 3 day transportation pass. Outside of nearly getting kicked off the train for having my feet on the seat across from me and not having a student identification card for A, the ride was uneventful. We walked to our hotel and they permitted us to leave our bags until we could check in later that day.