I called the farmer who found the pieces! He is super mad that SpaceX is saying that this is safe, when clearly very large pieces are making it to the ground (and this kind of thing is TOTALLY ACCEPTABLE according to every launch and reentry regulating body. Wild.)
He said I could come take a look at the pieces after he's done seeding in a few days (because, Saskatchewan). He also really liked the idea of sending a bill to SpaceX for littering on his property. This could be a lot of fun!