I've done 285 before - beautiful drive, then the last bit before Blue River was so backed up that it took longer than I-70 at the same time. But - one of the many reasons we rent a place up there throughout the winter is for the luxury of leaving late Friday night and returning late Sunday night. We watch the CDOT app till things look mostly green and yellow with a smidge of red. By the time we hit the tunnel, it's usually fully cleared.
Interesting, considering I lived 13 years south of Breckenridge (Alma & Blue River) driving that route on a daily basis and never experienced anything like that.