^^^ I have not, on account of it being a weekend. But I gather that they prefer I go through a dealer, which is what I ended up doing. The dealer is my LBS, but they will be closed next week as the whole crew is headed to Interbike. The spokes have already been ordered.
Regarding the Sapim spokes, it looks like I could probably score some if I knew how long the spoke should be. I'll keep that in mind if there are future broken spokes on this wheel.
Thanks very much...