We've had the last ADR at HBD before, it's not so much of a quick meal and we did not rush. When we came out, the park was basically empty and the stores were closed. Loved being in DHS all alone! We walked to the exit and talked to CMs, some in suits, and traded pins with them Buses were still running. I can't imagine they will leave anyone stranded in a park that needs to get to a Disney resort. They wouldn't allow ADRs after park closing if this were a problem.