None of this makes sense.
Before they go public with the awards the Nobel Committee always contacts the chosen few to make sure they'll appear. If they choose not to make the trip to Stockholm then Candidate #2 is selected - provided they elect to go to Stockholm.
Unless the rules have changed Dylan, originally, said he'd attend. And now, he's not returning calls?
Our current sitting President was awarded a Nobel Peace Prize, before he was inaugurated, in the hope of better things to come. (Consequently, I'll leave the results of that award to better minds than mine.)
Fnord