Personally if mine was due it?s first service and I was still riding it (personally I think that would be stupid because if you crashed you?d be put on a ward full of corona virus positive people), then I?d change my oil and filter at 600 miles. 1200 miles is toooooo long. J
Yeah, I'm just sharing this in case someone is in this current scenario and happens to be a key worker, then at least they won't have any warranty issues.