It is not over yet. They will provide bad info to anyone asking about your employment there. It may make a difference when you apply for another job, or need a security check background investigation.
Thing to do in my opinion is contact OSHA, and any state offices that deal with safety immediately and turn them in. Next thing would be to get legal help and sue their butts. Just leaving at this point will not help you or anyone else, you must act and take the initiative.
I was told to hook up a pedestal grinder for the big boss at the Pentagon. I said sure, but first we have to have the tool rest set properly , and the shields had to be in place. Then I went to the safety office and came back with all the safety info on testing grinding wheels, rpms of the wheels and tachometer readings of the machine, along with other safety tips.
The machine sat unused, and not hooked up until I retired.