Well, we've moved to an entirely new level, way past irritation: apparently, the leak is coming from the back of the engine, and they will be keeping my car for (at least) a week to try and rectify the problem. In one fell swoop, I will surpass the total number of days all of my prior cars (25 years' worth) spent in the shop. These problems seem to be serially correlated, so I'm beginning to get worried about whether this car could be a lemon....

At the very least, my pain is assuaged somewhat by the pimpin' Hyundai Elantra I got as a temporary replacement.