The Sinking City 2 locker room safe code

The Sinking City 2 locker room safe code in the Fish Market has possibly some of the most obscure clues in the game. The main hint is a situational nod that might mean nothing if you read it anywhere else other than where you found it, and you can't even get the clue you need unless you first find and solve the Salt Storage code, which it's linked to. It makes it one of the least satisfying puzzles to solve here, despite the useful reward it hides. I have at least done it for you so you don't ha