Yeah, New Mexico IDs and license plates both say “New Mexico, USA” for exactly this reason. So many people have almost been illegally arrested and turned over to ICE by incompetent cops during traffic stops. Cops will pull New Mexico plates over, see the New Mexico ID, and demand to see visa paperwork because they think the person is from Mexico.
But this opens a whole new can of worms. You’re telling me he was smart enough to evade capture for a week, but wasn’t smart enough to ditch the ghost gun he had used in the murder?
It smells like turned off body cams and planted evidence.