@izr None of that (if it exits) is legally enforceable. Same with non-competes.
There is nothing that any employer in the US can legally do to prevent you from working a second job.
At most, they will terminate your employment. They’re going to do that eventually anyway, so it’s better to have a second income.
@OP Don’t let the negative comments here scare you. Seek out a second job (or a third) and keep it on the DL. There are resources if you know where to look. That’s all I’ll tell you. Good luck.