This is the official Wikipedia photo for Storeria dekayi and ... I don't know how to say this nicely but I think someone has been editing their own article.
Of all the snakes to have a "strike you!" pose ... I can't think of any less appropriate.
These are tiny little snakes that live in NYC parks and they eat snails and worms. This "fierce" pose? A preamble to a mild "gumming" at best... running away is more likely.
Anyway. Good for you little brown snake.