It doesn't hold up since the player had holed out. You can't interfere with a disc that is not in play. I simply retrieve a disc that somebody didn't clear. If you actually do what you are supposed to and clear the basket, I don't end up with your disc.
So far as me using it, nowhere does it say you have to use the discs in your bag at the start of the round. I've actually lost a Banshee on the back during a tournament, bought a new one in the parking lot on my way to the front during the round and thrown the disc I bought in the middle of the round later in that round. No rule against it at all.
I'll address the second paragraph first. I agree, I know that, that is not what I'm "arguing." Also I'm doing this in good fun, devils advocate, as to create conversation and dialog. It's going to be a long slow day at work
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
.
Since the player holed out and did not retrieve his disc you could call 804.03.F:
Players shall not stand or leave their equipment where interference with a disc in play may occur. A player may require other players to move themselves or their equipment if either could interfere with the throw. Refusal to do so is a courtesy violation.
So no one asked him to remove his disc, "equipment", from the basket he can leave it there.
Also there is the argument of 803.01.A:
Obstacles to a Stance or Throwing Motion: With the exception of
casual obstacles to a stance as described below, a player is not
allowed to move any obstacle on the course. No relief is granted
from park equipment (such as signs, trash cans, or picnic tables),
which is considered to be part of the course. A player is allowed
to request that other people remove themselves and/or their
belongings from the player's stance or line of play.
Which the 803.01.D:
A player shall receive one penalty throw, without a warning, for
violation of an obstacle or relief rule.
Because 803.01.A says you can not move any obstacle on the course and 803.01.D describes the penalty.