Since I've had my CHL (about 6 years) I've been pulled over about 5 times and only once did they not ask about my CHL. The other 4 times they did none of the officers told me it was required to tell them I had a CHL but did say it would be in my best interest to do so in the future. I smile, nod, and don't get any more harassment about it. I know that arguing with them won't get me anywhere.