Apparently not if he asked me as a "courtesy", the implication being it was not required. Plus, a retired state highway patrol trooper, a hometown city police officer and the county sheriff told me I didn't have to tell him anything. At least in Idaho that seems to be the case.
Yes, it’s always your right to remain silent.
I asked three different cops and got three different answers.
One said you don’t have to tell unless he asked.
the other said tell him as soon as he walks up to your door
the last one said only if he asked you to get out of the car.
Blah....