If it were me, and and it's not.... I would call in personally and ask to speak to the man in charge, for sure you would be directed to a quite room where you will be greeted by two cops, one would offer you a cool drink, with a tapas of your choice, enquire about the family, tell you that you have a great looking car parked outside, mention how nice the weather is this time of year in Spain.... And say "I will Just check the paperwork once again" turning his back on you...."Well this is going better then I expected" you might think.
While his back is to you checking your paperwork once more, his mate will whack you around the back of the legs with his stick, poke his gun in your ribs, you might also for your trouble get a gentle nudge in the nether regions, all the time this has been going on from Mr Nasty...… Mr Nice has been double checking the paper work again and again, when he looks up and ask's you again "Now lets just run through this paperwork once more" you might just feel obliged to say F**K this and remember a prior appointment....Have to dash...
"Okay Senior....Have a nice day....Call back in anytime".