Fashion Week must leave Bryant Park by 2010, and it might end up someplace that’s rarely visited by the fashion flock: the Port Authority Bus Terminal. “It would be in the fashion comfort zone”—geographically, that is—“and that’s what I like about it,” Fashion Week honcho Fern Mallis said at a Mercedes-Benz party on March 18. She likes the concept of putting the tents on the roof of the station’s south wing, across from the new Times building. (That level is typically used as a parking lot for cars.) “Moving people up to the roof is an issue, because they’ve only got a few passenger elevators and they’re small,” she said. A Port Authority spokesman confirmed that the agency is floating the idea by IMG Fashion, which produces Fashion Week, but had no comment on the concept’s feasibility.