I understand, I would have done the same thing. However, thanks to your help, I now know I'd rather do a border bounce since I've expected the extension to be as easy as extending a tourist visa for 30 days. I did not expect they would ask all the DTV paperwork all over again.
Interesting, thanks for sharing. I guess one could avoid the hassle of extension if we just leave the country and then reenter to reset the 180-day counter?