What ended up happening with your friend?
he had to order some wings and a seven bud light bottles from tgi fridays a block away from his hotel room that delta set him up in cause it didn't even have a bar or restaurant in it and instead had a tgi fridays menu in the room w/ instructions that they would deliver room service.
also, the rep called him back and said that, yeah they wondered where he was and if he was still there to feel free to stop by a tradeshow type thing that they were having. he didn't. he got back to work today and forwarded two different emails that listed the wrong date and said that he would still be up for attending future events but would make sure to confirm times/dates. my guess is that they'll let him go to whatever he wants cause he really does order a good amount of stuff from them and could easily stop at any time. he hasn't heard anything back yet.