Any sites available where you are at in lower TX?

Your timing might be right on as this cold spell we are now in is scheduled to break about the time you would get here. I agree that you should drop the rig at a park for a short stay and look around before committing to a longer period.
aauummm mentioned Fun and Sun. That is the park we are at in San Benito. So far we have had lots of fun but little sun. It is coming though. There is sites here as in most parks in the RGV but have had a jump in taken spaces since Christmas.