You have to be careful - the coupon code will go through, but they'll disallow it once the order processes. There's even a mention in the terms and conditions that even if the code is accepted it will be reviewed/denied if not eligible.
I have a coupon code that's valid another few days (same kind - "thank you code") and I should try it on this fig, but my guess is it won't go through at time of processing.
That being said, I managed to get $30 off the SSC ATAT driver during Spook and realized later that the figure wasn't coupon eligible until a couple of weeks later, and yet my order shipped with the $30 savings, so go figure.