There is no reason for Frank to comply with this because Frank is innocent and won't be DQed. What part of that is hard to comprehend?
You aren't a RD. You have no idea what evidence they have to keep his time up. I'm sure it's plenty.
Frank will disappear and now you've alienated a whole group of potential new runners who came from LA Times to find out that if they run a marathon Derek is going to chase them down and try to get them fired. Well done chaps.