This is from September 1969 and although I am unsure where teh time line is right for Dad being in San Jose office.
Budd made quite a few Rail Diesel Cars however, SP only purchased one unit. This car is alive and here is the history : https://www.splives.org/wp/sp-10/history/
There is one photo RRARCHIVES from a few months ago that states this car is actually slated for restoration at the planned Southern Pacific History Center
They have a donation pager here : https://www.splives.org/wp/