Thanks, PVDtoDEL for confirming that my suspicions are valid, and thanks to TK8853 (welcome to FT!) for the information. I'm leaning toward believing that this is a legitimate promotion. To echo the theme of another thread, the fact that this is unprofessionally done, poorly promoted and not even known within the company is actually a hallmark of TK marketing! We also found a facebook post (warning: extremely Turkish male attire!) from a San Diego Turkish community organization that would seem to substantiate 8853's claim that they are promoting this within the community. Since my colleague is threatening to use Uber from LAX to San Diego instead ($150 fare, I think she said) I'm going to encourage her to give this a try and I'll try to report back on her experience next week - whatever Four Seasons might try to extract in fees or tips will surely be less than the Uber option...

Oh, and yes, we tried calling the TK LAX operations and sales offices but didn't manage to get through to a human. Never before have I encountered an organization with so many voice mailboxes...