On the proviso... you didn't gouge a hole right through your precious engine covers, you may just be in luck.
After the Gixer took the fall, I was surprised to see the alternator cover was still oil tight. Yes, it was in a bit of a mess, worn down and scratched to buggery but, to be fair, it was already in need of a repaint before the accident as it was stone chipped and a bit dull. Definitely on the list of things to be done in no great urgency. Now it was a little more urgent.