How many scratches did you get? Any cat jumping on a slick surface is going to try to get traction by digging in with it's claws.
I've found some tracks on the C5Z now and again and also on the C6. Seen tracks on Connies Silverado, too. Don't get me wrong, I REALLY like cats, as I always had a cat as a pet growing up, but this one is in severe jeopardy of losing some of it's nine lives if I spot it. Not to mention that we have birds roosting on our porch nearly every night that I know attracts the cats as well.
Yeah, I do like cats, but there are some things I happen to like better that they are forcing me to choose between. And knowing cats, they will not listen to reason nor logic......