Showed mine  

  (CHL, that is!) twice.
I was headed home kind of late (about 10:00 PM) on a Friday night from the old office in Houston's beautiful crime-free Westchase. Headed down Westheimer towards the Beltway and there was a roadblock; HPD was waving everybody over into a strip center parking lot. Officer came up to my window and I handed him my TDL, CHL, and insurance card. I told him I was carrying; he asked where it was and just said "well, don't let me see it". Asked where I was coming from and where I was headed so I told him from working late and headed home. Waved me over to a parking space, carrying my documents; I saw him get on his radio and in a few minutes he came back over, handed me my stuff and said "have a nice evening"- I said "well, same to you, officer" and that was it.
Coming back from loading up my feeder at the lease near Corrigan. Just out of Corrigan I get "lit up". My bad! I'd been carrying my validation sticker around for months without putting it on the windshield, what a dipstick. I had no idea why I was stopped until the LEO pointed it out. I told hime what I was doing and everything. I was nervous as a cat and the officer just laughed and told me not to worry about it and even said that "we like to see good folks like you carrying, just hang on and let me call this in and you can go get on your way".  He called me in (the vehicle is registered in my wife's name), we had a short conversation about handgun hunting and that was it.
I'm always reading about folks getting asked to search their vehicles. It will probably happen to me sometime but neither of those LEOs even said anything about it to me. Although that time on Westheimer they were searching other vehicles, maybe the CHL does give us a little bit of slack.