Update:
Took him to the vet and she was AWESOME! She reassured me that he is in no immediate danger and that the most important part of the ordeal from here on out is to keep him clean and get him to eat. She gave me a chlorhezadine solution to dilute with water and bathe him in every day. Said the laceration and subsequent scar will get less noticeable with each shed. Keeping him on clean paper towels until further notice..
Any other suggestions?