You can, and should, ask him for a certified (official) copy of the court's judgment of annulment;  it's something you will probably need in the future to prove that you aren't married.  If he won't do it, you should have the case number from the waiver form and the other papers, and for a small fee you should be able to get a copy of the judgment or decree from the court clerk.  Almost every court in the U.S. has some sort of internet presence these days;  if you can't order the records you need on line, there will be other contact information at the very least.