there is also a landowner exemption to allow for shooting coyotes from your vehicle in colorado - a little known reg - I got in to it with my hunter ed instructor over this one
it not detailed in the regular small game booklet, its on line though in the full regs download
Specifically the law about hunting small game during big game season with a big game legal rifle applies west of I25.
From the brochure:
It is illegal to hunt game birds, small game mammals or furbearers with
a centerfire rifle larger than .23 caliber during regular rifle deer and elk seasons W of I-25, without an unfilled deer or elk license for the season. A
small game license is required.