There is no duty to inform. What the law says is that you must present your HCP to a LEO upon his/her request.
Many LEOs prefer you inform, some will may make you think you must inform and some will give you "a talking to" if you didn't inform. But nothing in the law says you have to.
Except as provided in subdivision (n)(2), a permit issued pursuant to this section shall be good for four (4) years and shall entitle the permit holder to carry any handgun or handguns that the permit holder legally owns or possesses. The permit holder shall have the permit in the holder's immediate possession at all times when carrying a handgun and shall display the permit on demand of a law enforcement officer.