I wish there were an exception for this. Likely the drone had programmed waypoints and was in an autonomous mode.
I remember hearing about attempts (back in the 80's?) to send a self-piloting model airplane across the Atlantic. I believe they finally succeeded? Fascinating to me. Utterly illegal I suppose.
But weather balloons get pass? I know amateurs launch balloons as well — perhaps there are restrictions however (like not near an airport, etc.).
Just some random thoughts.
EDIT, found a successful crossing in 2003, I thought there was an earlier one — perhaps only earlier failures.
https://en.wikipedia.org/wiki/The_Spirit_of_Butts%27_Farm
https://www.sciencenewsforstudents.org/article/model-plane-f...