I finaly made it past the timeouts to get into the official WoW forum. In short, thousands of people are experiencing this and it seems to be something on WoW's end. Many people are reporting that they are able to successfully update by leaving it sitting for a couple hours. After leaving it sitting 30 mins past getting the firewall message, it finaly went up to 2kbs for a bit then stoped again. I'm all the way up to 1.2 mb downloaded past the point which it complains about a firewall. There are also aparantly full versions of this patch available for download at Filefront and possibly other locations but I haven't looked into this myself.
As Ninjakoi's husband said above, it is probably just due to so many people crowding into line combined with a poorly coded firewall detector.
Edit: This link was posted on the WoW forums by DavidHC, an employee, so it should be legit. I haven't tried it myself yet.
http://www.fileplanet.com/150253/150...Patch---v1.11-