Fired in retaliation

I made complaints to both the ERC and Ethics Hotline concerning the locking of the secondary fire evacuation exit from our break room by management, probably in an effort to shorten our break time. This exit was locked just before peak season, and was being used as a means of cutting breaks shorter, by creating panic driven premature time write ups, on employees who now all must exit from the same narrow hallway. In addition, our break room fire evacuation diagram is not a diagram of our building as it is, and does not have the fire exit, the hallway, and various other areas of the building in it. It appears to be a generic layout created to look like a genuine fire evacuation plan, when it clearly is not.

In retaliation, I was sent a termination email while at home off company time. I contacted the ERC and was told that I am not being reported in the system as being terminated. I was instructed by ERC to return back when HR is open and attempt again to resolve the issue.

I was given a copy of an Appeals Process Policy which they claimed to have started January 2018. After reading it, I realized that they are trying to do away with the retroactive "Open Door Policy" under which I was hired. In the email, they are basically threatening that if I don't submit the Appeals Process Policy form back to them in 7 days, my termination will become final and non reviewable. In others words, they have temporarily suspended my employment, without calling or writing it up as a suspension, which will become a termination if I don't allow them to coerce me into accepting the new Appeals Process.