I'm not sure if I should reply to your thread here or on Slowtwitch, but here is easier.
Without seeing the rim it's rather difficult to assess, but I'm guessing from your description that it was damage that occurred due to something that occurred in that crit. Regardless, I would start by contacting our customer service/warranty department. They will be able to assist you much better than I can.
Contact page with options for calling us, having us call you, or live chat: http://www.zipp.com/support/index.php
If the damage is not due to an issue with manufacturing, you may still be eligible for a crash-replacement rim at a discounted price. If your wheel features a dimpled rim but 182 hub it's right on the cusp of our 5-year crash replacement deal. If it's a 220 hub it would unfortunately be outside of that window.
ID your hubs: http://www.zipp.com/support/identify/hub_timeline.php
Hope that helps.