The song I was talking about is "You Never Even Called Me By My Name" by David Allan Coe.
Part of the lyrics:
"WELL, I WAS DRUNK THE DAY MY MOM GOT OUT OF PRISON
AND I WENT TO PICK HER UP IN THE RAIN
BUT BEFORE I COULD GET TO THE STATION IN MY PICKUP TRUCK
SHE GOT RUNNED OVER BY A DAMNED OLD TRAIN"