I feel terrible about the damage John did to your garden. Being a gardener myself, I realize how much work you put into making it productive. I know I would be displeased if someone were to run carelessly through my carefully planted tomatoes.
John feels bad about what he did, and although he cannot repair the damage, he says he wants to compensate you by doing yard work for you this fall. If you agree, I think this would be a good lesson for John.