I've had no problems with a Mavic 4 Pro from South Korea flying near a small airport, after checking the pop-up box.
What's the location? There may be another airspace restriction in place other than that small airport?
What? I know of no one who attempts to hide their license plate or interfere with other people seeing it. Everyone I know just drives around in public with the plate clearly visible to anyone. That's required by law, after all. And they even have...