You can on any website. (Well, I shouldnt say that, but I am fairly sure you can).
But is that what people are doing? I mean, in ice hockey leagues (where we have had this happen), if your game is cancelled cause of snow, tough luck buddy!!! Thats part of your "GM planning" and you have to find a counter to it. Of course, a lot easier in hockey to avoid 1 game and recover.
Somebody in one of my leagues mentioned this, but I think the Giants held an "away" game at home against the saints when their dome was hit? Cant the NFL do the same?