(a) In this section, "furnishing fire protection" includes traveling to or from a fire.
(b) The act of a person who, in carrying out a county's authority to provide fire protection, furnishes fire protection to a county resident who lives outside the municipalities in the county, including the act of a person who is a regular employee or fire fighter of a municipality, is considered to be the act of an agent of the county.
(c) A municipality is not liable for the act of its employee in fighting fires outside the municipality under a contract between the commissioners court of the county and the governing body of the municipality.