May be a silly question on F/T rats

[Bogertophis]

...That leads me to another question... would you think we're ok to wait for the ones I ordered or should we get a frozen mouse to give her? I'm thinking it's ok to wait a few more days, but I don't want her to starve either.

Snakes are "designed" by nature to fast. They don't eat on schedule in the wild, only in [some of] our homes. I personally don't stick to a feeding schedule. And unless your snake is in bad shape (chronically underfed) I think you're fine "waiting a few days"...she won't starve. Probably won't even notice.