Here are some more Dobe rescue links. One is in your area, the others are scattered around Texas, but I'm sure would be willing to set up a transport or meeting place.

North Texas/DFW:
http://www.dobermanrescue.org/

Brazos Valley:
http://bvdobermanrescue.org/

Houston:
http://www.hadr.org/

San Antonio:
http://rescue1dobe.tripod.com/