We are NOT required to inform police that we have a firearm, when pulled over. Though, from what I gather, most police assume that we must inform them. But there is no law in OR requiring us to do so.
1) Neither the automobile carry restrictions nor local restrictions on open carry apply to CHL holders.
2) While I am sure that is the way you meant it, the wording really does not make clear that the 6 mos continuous residency only applies to resident aliens...not citizens. A citizen can get a permit the day he/she establishes residency in OR.
3) An approved training class is required for a CHL.