So throughout the game you can find cheat codes on billboards and such. I put one in and the game said "SAVING, ACHIEVEMENTS AND PROGRESS WON'T BE SAVED UNTIL YOU RELAUNCH THE GAME!"
Didn't like that. So I quit my game and started again. Played for about two hours, unlocked a ton of stuff. Time to quit. Go to save game.
"YOU ENTERED A CHEAT CODE. SAVING IS LOCKED UNTIL YOU RELAUNCH THE GAME."
Oh, I'm sorry. FUCK YOU.
I quit and restarted. That should count.
A warning to anyone else.