Yes, or no!
No. Why would you think it's even a question?
Because he reminds me of Sheldon Cooper with a guitar?
I met Brian May many years ago and we had a very pleasant chat with no cussing involved.
Sheldon Cooper doesn't cuss! And bad language isn't associated with Aspergers', maybe you confused it with Tourette's Syndrome.
He seems like kind of a reserved guy, but I haven't seen anything that would make me think he has some form of autism.