The cops found my car! Hooray for the Chicago police! It was at 71st and Talman (about a twenty-minute drive from my place), and full of all kinds of junk. Clothes and a broom and their music (mine is sadly gone) and suitcases and jumper cables (which I'm keeping) -- it was as if they'd moved in there. A broken window in back and some other minor damage; hopefully my insurance will cover that. Oh, such a weird experience, but I'm happy to have it back!