This has happened before. In the immediate aftermath of 9/11 north american airspace was closed. All those international flights from europe were not allowed into US airspace. So they started piling up on canadian tarmac. Small towns like Gander Newfoundland saw their populations double in a matter of hours as transatlantic flights landed on their tiny airport. We don't have drone footage, but I've heard stories about aircraft being parked on grass ... something everyone is loathed to do.
https://www.youtube.com/watch?v=8_Ey5ph4wW8