It certainly sounds like a coolant leak. It could be something as simple as a ruptured hose. If you had a bad thermostat or water pump you should have overheated. The key for you now is
don't drive it. The fact that you were able to drive it for two hours without the engine melting down leads me to believe you have a relatively minor problem. Driving a car with insufficient coolant can turn into a $10,000 engine replacement quite fast, so if you haven't blown it up yet...don't.
Try reaching out to your local Porsche Club of America Chapter. It looks like you are in Zone 10, Wichita. Here's their web page
http://wic.pca.org/ Their President is Tim Maher. Shoot him an email and tell him where you are and what your problem is. I'll bet you he'll know of a good independent Porsche mechanic in your area, who will have you back on the road in no time.
Trade it in? That would be quitting.
