Also did not happen. Holding a weapon is not brandishing it.
The definition of "brandishing" in holding or display a weapon in an intimidating or threatening manner. Substitute the cops with a pizza delivery person, for example, and I bet they'd feel pretty darn intimidated and/or threatened in this exact situation.
When you greet someone at your door, you keep your gun in your holster, just like you keep your dick in your pants. That's called common sense. If you don't have, you've only got yourself to blame.