Back when I was a kid we had a cat that would push the back door screen open and the dog would chase her up a tree. The first time it happened the cat stayed for 5 days and nights. My mom tried everything to get this cat down with no luck. Ending the fifth day 11 alive news of out of Atlanta was coming to do a story on this cat. I'm mean my mom was out of ideas and needed help. Well before the news reporter got there someone called and suggested we call a tree surgeon. The man shows up, put those spikes on his shoes, walked up the tree and got our cat. This was back in the 70's and he charged her $10.00 for rescuing our cat. After the man came to our house five other times to get this same cat out of this same tree at $10.00 a trip my mom had the cat declawed.
Good luck!