I did it! I'm finally back from DC. I was really nervous, there were so many people. I think I could have found a smaller race to start out with but oh well. My watch said around 38 minutes, but not sure of the official yet. I went really slow, but I ran the whole time. I bet I could finish faster if I took walk breaks, but then I'm afraid I wouldn't be able to start running again.
The best thing was, I ran into an old friend on the metro! It was awesome, we haven't talked in a few years and used to work side by side for years. She has done two marine corp marathons, but had ankle surgery several years ago and does not run as much now. She stayed with me the whole way.
The kids race was not well organized, by 8 year old got trampled in the mud. They widened the course and ran it again because so many kids got knocked down. It was maybe a 1/4 mile course. He was a little upset but I don't think it dampened his spirit too much. He's looking forward to his kids triathlon in the fall. We went to the air and space museum after and now we all are going to just chill out a while.
So now to figure out where to go from here.