Remembered that I had an empty 5-qt oil jug. Drained my catch pan into it, and look at that—2qt even. I added 24 oz before letting it drain after warming up, which is 2/3 of a qt, so my trans was overfilled by 1 1/3 (or 1.33) qt at the transmission shop. Extremely disappointed in that shop.
Thanks to those of you who helped me out on this thread. This forum is still awesome!! And now back to your regularly scheduled “which tires for my lift” threads.