Then file one.

Look, I care about limiting the power of the Federal government to the parameters outlined in the law and the Constitution. I do not care how hard that makes their lives. I do not care that it crimps their ability to go get any information that they want. They have rules that their supposed to follow. If they want the information, they should go follow them.

It isn't that hard to open a court case with a TBD defendant. If the USG thought they could get a subpoena, I have every faith that they could have figured it out.