F.3d 1179, 1192-1201 (10th Cir. 2006) (company's disclosure of documents to the SEC during criminal investigation waived work product protections); Grace United Methodist Church v. City of Cheyenne, 451 F.3d 643, 668 (10th Cir. 2005) ("any work product objection was waived by [party] via production" of the documents in ques