Air forces of the world seem to have their own more strict code of honor, moral or mutual respect. Hermann Goering is known to have enjoyed some hospitality after surrendering[1]. Also Franz Stigler escorted a badly damaged US bomber to safety[2].
Indeed! The Swedish metal band Sabaton recently released an 8 minute animated video of their 2014 song "No bullets fly". After the song, it includes a clip of Franz Stigler and Charlie Brown's first meeting, as well as a clip of Franz Stigler's grandson discovering the song in 2014, calling his mom and her message to the band!
https://www.youtube.com/watch?v=dslO-3GgenY