Mapes visited Burkett in Texas. She may have had him fax the docs to NYC.
Burkett has been hiding out from the media.....doubt if he would drive to Abilene with her. My guess is that she was the one that sent the fax, not him. She went to Baird to interview him, according to CBS. My guess is that she probably composed the docs on her laptop while interviewing him at his home, then went to nearest Kinko's to fax them prior to catching a flight back to NYC.