Ethan,
I found one of my babies doing this when I got her home. In my case it was a respritory infection, and it is very likely that you are experiencing the same thing. I think the discharge from the nose is just that fluid being blown from the mouth out the nose. Mine dont really have much coming out of their nose because its a very muckusy(sp?) discharge. KLG was nice enough to pass on this website to me http://www.arav.org/USMembers.htm Just click your state and it has vets with herp experience in your state. For right now the best thing to do is just increase the heat and humidity, read up on treatment for RI, and keep this snake away from your others! I found in my area not many vets are open on the weekends, so you may not find one on the list open today or tommorow. You might want to check your snakes mouth for stomitis as well. If you can get some of the fluid out without causing too much stress it seems to help them breath as well. Good Luck.
-J
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"It's my snake, I trained it, so I'm going to eat it!" - Mad Max, The Road Warrior