An emergency responder that is responding to and rendering assistance in a political subdivision that has requested assistance under AS 26.23.510 who sustains an injury or dies in the course of providing assistance to the requesting political subdivision under AS 26.23.500 - 26.23.549 is entitled to receive only the benefits otherwise authorized by law for an injury sustained, or a death that occurs, in the course of employment with, or while providing services to, the responding political subdivision. This section does not affect the right of a person to receive benefits to which the person would otherwise be entitled under any law, nor does it affect entitlement to any other benefits or compensation authorized by state or federal law.