(a) A law enforcement agency that has custody of a person subject to an immigration detainer request issued by United States Immigration and Customs Enforcement shall:
(1) comply with, honor, and fulfill any request made in the detainer request provided by the federal government; and
(2) inform the person that the person is being held pursuant to an immigration detainer request issued by United States Immigration and Customs Enforcement.
(b) A law enforcement agency is not required to perform a duty imposed by Subsection (a) with respect to a person who has provided proof that the person is a citizen of the United States or that the person has lawful immigration status in the United States, such as a Texas driver's license or similar government-issued identification.