Through some miracle (and I suspect also due to the gator being made of a nylon compound) the initial damage on the wing looked awful. However the next morning it literally rubbed off - turns out the damage was limited to some minor scratches on the alloy from where the gator had first made a bid for freedom - annoying given they'd just been refurbished, but much better than the alternative.
I jacked the car up and ripped the rest off the day afterwards. As you said it's better risking kerbing than needing a respray....