Only if you want to be charged with a violation of the SDA for being in a government building while carrying a concealed firearm.
Now if we change the location to your favorite eatery, then the answer is easily, No. You are not being arrested, detained, or in a routine traffic stop so there is no need to notify.
Just because an officer and I have a polite conversation while standing in line at the gas station or fast food joint does not mean I need to notify either.
OK ,my apologys for the smart alec response , and your correct.
This is what I was looking for, as a passenger , unless contacted, I'll be Quiet