That does seem to be the archetypal 'jobsworth' story. It doesn't say, however, whether it was a Royal Mail van or a white van hired in, which happens sometimes.
Nor does it say if there was any human involvement in issuing the ticket. I'm assuming the camera car could have ANPR so the ticket was issued without anyone looking at the vehicle involved.
That would place the obvious failure in common sense back on the designer of the system.