I have deeply admired Dylan's work since 1965. his writing is sometimes brilliant. Then, again, it sometimes really sucks. (he should be forced to refund every dime he ever made on his "Self-portrait" album).
However, he has never been gracious about anything in his life. During his Christian period, he yelled at fans in his concert that they were going to hell. He had such a disastrous filmed interview in the 1960's that he disappeared from public altogether for years. He is obviously an egomaniac, and even holds his fans in contempt. I was at a concert he held in Reno, at which he did not glance at the audience once, until his obligatory bow as he left the stage. i don't give a rat's ass whether or not he attends the Noble awards. I think it would be amusing if he did, and they told him when he got there, "Sorry. Since you didn't return our calls, we mailed it to you."