I'm Kumeyaay (Southern California Indian).
I am very dark-skinned, and I have some mestizo ancestry, so I look like I may be an illegal.
I sometimes get greeted in Spanish (which I don't speak) if BP/ICE pulls me over...
I concentrate on being very polite, and not making sudden moves.
One advantage is that where I am is pretty rural, and I know the (very few) sheriff deputies who patrol this region. So they recognize me...but I still stay cool, level-headed, and polite. They're usually asking if I've seen something they're interested in.
Never have a problem.
Cool, I have never heard of the Kumeyaay. I think I will google and get some more info. Nice to meet you.