George, you live in an area where there are in fact not too many rescues but often they come in from other regions and while an acknowledgement of your application would be nice, it is possible that they are trying to work things out. I have always found a phone call to Katy works wonders. There are several layers of coordinators too, so if you can't reach one, then try one of the others. Otherwise, I see your parents live in Texas, you might want to contact Texas rescue as they are usually overwhelmed and you might be able to get one while you are visiting your parents. Keep in touch and above all do not give up.
Caroline