Filing an anonymous complaint or contacting an ombudsman sounds like a good idea. I use to work evenings at an LTC where the 2 night nurses got sick and tired of being so short-staffed every single night. The 2 night nurses called the state several times. Fortunately, those 2 night nurses weren't fired.
They both quit their jobs in disgust. Yes it"s sad when someone does the "right thing" and gets in so much trouble for being a "whistle-blower."