Don't need no dealer's tag your registration papers to the DMV is all you need. I take off my dealers tag as soon as I leave the dealers parking lot and I even take off the dealers lic plate frame. I'm not advertising for the dealer at all. All their junk comes off.
Got a dealer tag on the way right now. Should be back in business soon.
I'm in South Carolina right now, so I have to wait for my stuff to get there, process, then get back to me. This is a pain in the ass, but Oregon will always be my home state. I'll probably be back there soon anyways.