Thanks for the extra pictures. That helps. Here are my thoughts:
Chicken wire is unusual for that type of enclosure. Are you sure it is chicken wire (hex-shaped) and not diamond-shaped fencing? Chicken wire is too weak and diamond fencing is too large which is why hardware cloth is...
Oh, it will definitely return. It has found a location full of food/meat and it will be very determined to get in. Raccoons don't just eat eggs. Proper current pictures are required if you want help with your setup.