Bombers could do it, but probably wouldn't out of deference to the Jets. It would seem untoward to do an event like that, especially given the history of the Coyotes.
There is a Rider presence along the western edge of the province, but it's basically the places that are within sight of the Sask border. No one in Winnipeg knows let alone cares if people in Virden or Russell wear Rider Pride gear. The beauty of living along a border is that you can bandwagon jump to your heart's content... once cosmic order is restored and the Riders resume missing the playoffs every year, those guys will be back