Between the Magic Eraser and that elixer Trav recommended I'm praying for success.
I gotta go to Greensboro today to get the strut rods for my '98 LS400 (the original ones finally wore out) and they will have a Target store. Please be near the Coldstone (Banana Caramel Crunch).
I will give both methods a try in the parking lot. Gotta remember to take a water bottle and some rags.
Hopefully, all will be well and I can drop off the strut rods at my mechanic's house on the way home as I ask him about how he protected the seat while he was working on it. Honestly, all he did was replace the center carrier bearing so I doubt he "used" anything on the seat. He said he had the car 3 feet up in the air??