mother and father encountered triangular hovering shape over hwy 28 years ago.

28 years ago my mother and father's car stalled on Hwy 401 between london and tillsonburg.  When they pulled over they both got out of the car.  I'm not sure who saw it first, but they saw a triangular shape hovering close to them it had flashing lights (white light on all tree points and a red in the middle). 
A few moments later it shot out a white light in front of it and then it was gone.  
They both got back in the car and drove away.  My brother and I were born shortly after the the incident and my mother told me afterwards (almost dying of a c-section) when she awoke (dream state or awake, unknown) the walls were bright white and see through.  Black shadows apeared behind the wall, they were trying to get through is what it looked like to my mother.  
Than a few moments later they were gone and my father was standing in the doorway.
Time and date are approximate.  We have assigned an arbitrary time and date so that the case sorts to the year 1973.