There were enough clues for me to figure this out earlier. A few days ago my cat, Will, was sniffing around the front of my car. He's not usually interested in the loud, rumbly death machines that take him to the vet. Eventually he got bored and went to do something else.
And then yesterday while I was driving my other cat, Sammy, back home from the vet, there was a loud thud and the blower motor stopped working. Yet another piece of my car needing repairs seemed normal to me, so I just made a mental note to find out how to fix the blower unit.
But while I was driving today, I saw something out of the corner of my eye. Was that... a mouse? A minute later I saw it again, crawling around the windshield wipers as the car was cruising at 45 mph.
So I pulled over, thinking I'd pick it up by the tail and toss it out. (That's what you'd do, right? This is a new one for me!) But as soon as I got out of the car, the mouse crawled into a crevice. I looked around for it under the hood, but found nothing. After a minute of waiting for it to come back, I gave up and drove home.
At home I tested the blower, and it works again! So the unlucky mouse must have fallen in yesterday, only to climb back out to wreak more havoc today. I tried looking under the hood again, and checking behind the glove compartment (the blower stuff is behind it), but I still can't find the mouse.
I considered using the cats to catch the mouse after the car had cooled down, but I'm worried they'll leave half a mouse inside. Now I'm thinking about setting some kind of trap, but maybe the internet will know what to do.