When I first posted, I had not appreciated that the incident had occurred outside the front of the terminal, in the "drop-off" zone. Since both passengers were going on holiday, I am
as to why they didn't park first, and then go to the terminal. Since both people have to be present at check-in, little time is going to be gained, other than a "place in the queue". As
dfearns says, the sad fact is that people have got to be more careful.
Please note that my original BBC link has been updated.