Speed camera captures 'full moon'

From BBC News 1.5.08:

A front seat car passenger was photographed baring his backside at a speed camera in Northumberland.

The "mooning" man was snapped by the mobile camera as the black BMW X5 drove past on the A1171 Dudley Lane in Cramlington last month. His behaviour has been labelled as "dangerous and offensive" by road safety campaigners.

Police may take action against the man for public order offences and not wearing a seat belt. Officers have the registration of the car, which was not breaking the speed limit, and intend to contact its owner. It is understood the driver will not face prosecution as no driving offence was being committed.

I guess it brings a new meaning to those cheesy car-window stickers, 'smile for the speed camera'.  This story reminded me of the time when someone from my secondary school mooned at the bus driver after the journey home, as schoolboys - well, prefects in this instance - are wont to do. 

What I immediately wondered was whether it was pre-meditated.  I'm assuming it was, here.  Did the driving duo pass the mobile unit and think, "I'm going to get that sucker on the way back"?  Did then, as the driver approached the 'drop zone' give his passenger the nod as it were, indicating it was time to 'pull them down' and bare all?  Surely he must have: I mean, manoeuvring oneself round to an angle and position to moon out of the window is not exactly an easy trick to pull off without warning, even in an SUV.