for official use also

i saw two cars with red plates tonight while i was out...not one but two...the second one was when i was driving home at 10pm and i happened to be following it...but well it was probably on its way home so im gonna give the user of the car the benefit of the doubt...but the first car i saw was far too suspicious and it really made me ponder...coz it arrived at the coffee shop at more or less 8pm, aside from its oh so red plate, it has a sticker on the side of the car in huge bold letters " for official use only"...and when it passed by me its too difficult to miss it.... so it came to be that i cant help but think what kind of official government business is done at 8pm in a coffee shop on a saturday night?is it that urgent a meeting for the user to drive a government-issued vehicle to a coffee shop near the Capitol?...and i thought most government run establishments dont have their offices open on saturdays?..and still i thought more that in most government offices, they always call it a day at 5pm sharp?..what seems to be the official business of that person who used the car with red plate that he sat there at the al fresco talking to some other guys over coffee...and was looking so relaxed with not an iota of business written on his face...could it be that the sticker is wrong?...and that car is really "for official use also"?