We were heading back from the RennFair on 105 Friday evening only to get stuck in a massive traffic jam (not near Highway 6, so I believe unrelated to the Santa's Wonderland issues). It was bad enough that we saw a medical helicopter land. I was curious as to what happened (other than something hit something). Didn't see anything on KBTX or the Eagle about it. We offered up BIG prayers, turned around and detoured through Anderson (thus avoiding the SW snarls, as it turned out).