Road kill deer is very popular here. The 'authorities' give you the choice of keeping the meat or leaving it. Most leave it. We have a friend who is a butcher and we asked him why. He just shook his head and said that the internal damage and the damage to the meat is so bad that unless the deer is killed by a direct blow to the head it's unusable.
As for sushi. Yep, tried it. It was okay. Wouldn't want a steady diet of it mainly because of the risk of parasite infection from it. Once again. Knowing where your meat comes from and how it is handled is 2/3rds of the battle:
https://www.webmd.com/food-recipes/food-poisoning/news/20170512/sushi-lovers-warned-about-parasites
As for sushi. Yep, tried it. It was okay. Wouldn't want a steady diet of it mainly because of the risk of parasite infection from it. Once again. Knowing where your meat comes from and how it is handled is 2/3rds of the battle:
https://www.webmd.com/food-recipes/food-poisoning/news/20170512/sushi-lovers-warned-about-parasites