Of course a late start means a late finish. So the lengthy dinner interval was trimmed. And buses sped audience members to Lewes railway station as soon as the show finished. But still they watched the last train to London chug out from the platform before they could reach it.
Regular Glyndebourne-goers who've woken up in a sweat imagining just this very scenario will be delighted to hear there's a Plan B: sending the buses another half an hour up the road to Haywards Heath for the last Brighton to London train.