You can shoot either with an either sex tag, but trust me, you still need to abide by it. Its probably the one of the most commonly broken and ticketed wildlife laws in Colorado.
If you get checked with a carcass, its very likely they will check evidence of sex. Its their discretion as to a warning or citation, but they usually check it from what I've seen.
Easy enough law to follow, but I've accidently disconnected the evidence a couple times. After dark, on the side of mountain, dressing a critter by headlamp, it's easy to cut just a little more than you intended.
Not much you can do at that point other than put it in with the meat and hope for the best if you meet the wildlife officer.