No, it's not ending yet...
So just before suppertime, I noticed it was getting a little stuffy in the house, so just out of curiosity, I checked the catch pan for the condensation pump on the furnace and sure enough, it was almost overflowing! Fortunately, I had not put my shop vac away so I pulled the float switch off of the pan and sucked the water up to get the system running again. I primed the pump with a little water and sure enough, the tube was leaking again at exactly the same spot, just above the hose clamp. Of course, this all happened after normal business hours so there was no one available to take my call but I left a detailed voicemail message, telling them to bring a supply of tubing when they come and be prepared to replace the whole damned thing. The tubing is old—possibly half a century old—and it has apparently shrunk and become brittle, as plastics will over time. I guess I'm just going to have to babysit that pan all weekend and suck up water a few times a day until they can get here on Tuesday.