Jersey,
Do not give up. W. Alexander in our area sued the Corp of Engineers to prevent them from bullying people out of land that was above the high water mark for Kaw Lake. He won. The law states the Corp can only take land up to the high water mark. This is as I have heard it from
Mr. Alexander's son-in-law.
My point is simple, sue them to force them to do their jobs. They are servants to the law and should also serve the American People.
Get a lawyer and perhaps they will fold their cards as most low level civil servants do not want to get their names tied to anything negative. Being noticed in that world is not good for job security. Being the one that caused the govt to have to go to court is most likely a real carreer buster for those people.
I hope just a threat of a lawsuit by an attorney will get the gears rolling for you. Hiring an attorney will indicate to them you are serious and are not going away with just a brush off.
Too bad it takes lawsuits to get people like that to follow the law and do their jobs.