A foreign GM at that. Well in Europe just call a random phone number in the next country. Your next door neighbour, otherwise fully qualified, won't do.  http://batavia1920.nl/chess2011/?p=1#more-1

A success story in this year of cancelled tournaments to keep the GM norm possibility intact. North American tournaments do not have the luxury of calling someone in from the next country at the last minute.

Luckily no preparation is required. It is round robin, not Swiss, against mostly IM strength players. He is needed for his GM-ness not necessarily to play well. "Unfortunately that’s part of the deal, with these GM norm tournaments: when the GMs play against each other, there isn’t always a good reason to risk losing.". http://batavia1920.nl/chess2011/?p=136#more-136 

Short IS a GM just call him up.