When I lived in a rural area, my cats lived in my garage where they had a box insulated with padding as their "nest" and freedom to wander outdoors through an opening in the foundation. One day I parked in the carport, opened the side door to the garage, and found two raccoons had entered the garage and were happily enjoying the cat food. I called someone who knew about these things who said the raccoons were probably a young pair of siblings. I rented traps (the kind that don't cause injuries) and relocated the youngsters to a large state-owned wooded park where I hope they fared well. In the meantime I had to keep the cats inside the house which they tried to escape whenever the door was opened.