It's unfortunate their phone agents aren't better informed it's first-come-first served, and it is rolling, but only done a the airport. Every Denver gate last night had a mob of 20 people and shouting matches with the gate agents over the nuances of the rules versus what the phone agents told them (i.e., "phone agent put me on the list) which in a case like that can mean the difference between getting home that night or sometime after the Super Bowl halftime show.