The accident happened around 3:45 p.m. Saturday at County Road 105 and Highway 82.
Lorenzo Police say Adam Hinojosa failed to yield the right of way and slammed into another car. The driver and her 6 month-old son were both taken to the hospital with minor injuries.
In the midst of the commotion of the accident, one of the first responders ended up heading to jail.
"The firefighter showed up on the scene and was apparently intoxicated. DPS investigated that part of it and made an arrest on one of our new volunteer firemen," said Lorenzo Police Chief Larry Whittington.
Mike King was arrested for public intoxication and taken to the Crosby County Jail.