We never played them in football...
HOWEVER...
We did play them in basketball on December 14, 1987 (Benny Dees first year at UW). We beat the Panthers, 100-89, in Laramie.
BTW, we finished the year at 26-6 with a loss to Loyola-Marymount in the first round of the NCAA Tourny, 119-115. We were the # 7 seed in the West Regional that year. Also, that game was played I Salt Lake City, Utah.