Warning, video has foul language.
Canton, Ohio police see a car stopped, pull behind it to investigate. Cops yell at 2 of the people involved for about 6 minutes, completely ignoring the driver--but searching inside the car. After 6 minutes, they get to the driver. First thing the driver says is "I've got a carry..." and the cop interrupts, demands the truth. Driver explains, tries to offer his carry license. Finally the cop realizes what the driver is saying, and flips.
Ohio law says that a concealed carry license holder stopped by a law enforcement officer for a law enforcement purpose while carrying a gun must promptly notify the officer. It also says you must obey all lawful orders. The driver wasn't perfect, but you shouldn't be expected to shout at or interrupt an angry police officer to stay within the law. According to Ohioans for Concealed Carry, the prosecutor has offered to drop all charges in exchange for a promise not to sue.
In my limited experience with law enforcement, I've never had to deal with an officer like this, and never had a problem with notifying--the worst reaction I got was a local cop who once I notified would not let me get my own wallet out of my back pocket. However, I will notify even if I have to talk over an officer.
As far as I am concerned, the cop in the video demonstrated his unsuitability not just in his dealings with the license holder, but also with the others--'If I find you one more time tonight, I'm going to put lumps on you'.