Ejection, ensuing fun, and a couple of questions

[TwoBits]

Strict OBR. One runner on, two outs. Batter is ejected for arguing a strike call that ran the count to 0-2. Of course the team manager comes out to "discuss" the situation with the plate umpire (which was not me, in case you were wondering ). Afterwards, the manager reports a substitute for the ejected player to continue the at-bat. Player does not promptly take his position in the batter's box. After the plate umpire tells the batter 3 times to take his position in the box with the batter still not doing so (he has taken practice swings, switched bats, AND traded helmets), umpire calls for a pitch to be thrown which appeared reasonably close to the strike zone and calls strike three, inning over.

Now the question: When the umpire called for the pitch to be thrown, the pitcher, who was standing behind the rubber, just stepped up on the rubber and threw the ball into the catcher without pause, taking a sign, or simulating taking a sign.

Question #1: With runners on base, should this be called a balk?

Question #2: If yes to question #1, given the circumstances, would you call it?