And then called a Lyft the next morning (yay morning commute surge pricing, oy) before the cops could decide the car (clearly marked "breakdown, please do not tow" on the dash) needed to be impounded.
Thanks to the long-distance aid of Jim C, mechanic-on-call, I was able to determine that yes, there was coolant leaking, and figure out the approximate location of said leak, although not the specifics (huzzah for small hands and elbows that bend, when you need to reach onto the guts of a (cooled) car engine. But that required being towed to a repair place (since the one I'd called that morning never got back to me), and cooling my heels for several hours until they told me the extent (and cost) of the damage.
I am very tempted to do a "one month, one shot, if we hit $X I will give you guys a novella" car repair fundraiser - except between my patreon and the novel revisions and the new book, I just on't have the story-brain for it.
I wonder how much one slightly-used liver would go for on the black market?