i've never had any problems at the checkpoints. the one i am most familiar with is in Sarita. are you a US citizen? yes i am? have a nice day. haven't been thru their in years though, and certainly not since carrying. when i am contacted by a LEO they get my DL and CHL, they say thanks but i don't have to see this if you aren't carrying, i just reply that i know i don't like surprises either
. the gamewarden checked me fishing one day and he got my fishing license and CHL. he said, i don't know that i've ever seen one of these......
i just prefer to be upfront because i have nothing to hide and i don't want any surprises, i was carrying when the GW checked me, of course!