In some states the law is that you must notify.
In Oregon, there is no requirement to notify and my instructor advised against it.
I have never been asked to get out of a vehicle, but would notify at that point, if it ever comes up.
Interesting! I’m in OR & my instructor said to definitely say something, as they will know you have a carry permit as soon as they run your plate. Best to say you have it straight away. Not that I really want to...