That sucks Russell. Hopefully something will work for you.
Careful with the hairspray though. It can also act like a bleach and pull color out of the seat. Although, you'd probably prefer that to a black spot.
I've also heard a mixture of corn meal or cornstarch or some absorbant material combined withy 50/50 water and alcohol to form a paste might work. Create the paste and put it on the spot, after you've already blotted the surface to remove any excess. Once the paste drys, just rub it off, and repeat. I don't know how that will work on the escaine, so don't take that suggestion as a sure thing. I would imagine at this point you're desperate to try anything.
Let us know what happens.