Federal and state responsibilities
Arizona v. United States addresses federal preemption of particular state immigration measures. It does not make every state or local rule invalid. Assess the specific rule and later authority; residence alone does not establish immigration status.
Finding the responsible office
Use USCIS instructions or your EOIR notice rather than assuming that a court exists in every state or that the nearest office handles your case. This geographic reference does not certify local facilities, services or state-law developments.