He has been back to Winnipeg on several occasions to perform. His old house is a bit of a "to see" destination for visitors and fans. The last time Bob Dylan played here, Bob scheduled a side trip just for himself (no entourage) to see Young's old house, asked the current owners for a tour which they gladly did, and hung out there on a blanket on the lawn absorbing the karma and essence of the location. Most of Young's best writing apparently took place in that house as a teen.
The chances of my getting an autograph, unfortunately, are the same as yours: nil, zero, nada, nichts, gourhnisht, rien, drobiazg, niente, neeshto ........ you get the idea.