Pretty sure it was weather - buses don't do well on icy roads. I believe they had both gals and guys games scheduled (4:00 and 8:00 p.m.) but both are postponed.
Not sure how the weather is on the route they would be taking, but we've had over 2" in the last hour and a half and it doesn't seem to be stopping any time soon. Supposed to turn to rain by midnight, but they may miss that forecast.