Another question about the investigation process, after the investigation, what comes next?
This will depend on what is found in the investigation. The result could be no action at all, a warning letter Notice of Investigation put in your file, or a formal administrative hearing before an Administrative Law Judge.
They said something about a hearing waiver where I would just pay a monetary penalty. What if I don't accept the waiver?
If you reject their offer, a hearing must be held.