Again, I'm impressed Tanya.
You may very well be the first domainer to willingly approach a company with a trademark issue and transfer your domain to them, without them even having noticed it before you mentioned it. I suppose that it is ethical, and you probably did the right thing.
At least from a pragmatic point of view, you won't run into any legal disputes because of the name. Talking to legal staff is always intimidating because they are sharks! It's actually ironic because they would turn right against you if someone paid them, and you're doing something very ethical towards them. ahhhh good job Tanya!
Thanks for keeping us updated! It's a very interesting story!
lol I hope you do get your free tickets
Zach