More Airport police
At the Airport there was a set down area in front set aside solely for buses and taxis. Public prevented from driving down there also and any that managed and parked there got clamped straight.

Well, one day an ambulance comes screaming in for a lady in cardiac arrest. They sprinted in and minutes later came out to find, yes, the ambulance clamped...
( dazbrilliantwhites has been meaning to change this..., Sun 8 May 2011, 15:57, 4 replies)

"Just doing my job, mate."
Probably not actual cops, though - more airport rent-a-jobsworths.
(sarcastic fringehead feet of clay, buns of steel, head of lettuce, Sun 8 May 2011, 21:46, closed)

I had a similar experience...
...my ambulance didn't get clamped at the airport, but the wannabe policeman (airport security guard) demanded to have me and my partner frisked and our drug kits etc searched before they would let us in the departure lounge for a patient in cardiac arrest. "No problem" I replied and I then asked him his name. He wanted to know why and I told him that I'd be sure to mention him by name to the coroner if the patient died.
He let us in real quick after that and we managed to save the patient.
(emadex thinks the world will end on, Mon 9 May 2011, 12:16, closed)

HappenS...
...too often to comment sadly. Have had similar experience to my Antipodean friend Mr Emadex except it was at a railway station in "That London". I was filling out some paperwork after a non-conveyed when a plastic policemen (PCSO) came up and demanded to know what I was doing or he would issue me a ticket for loitering...

....in a large yellow 4 tonne van with LONDON AMBULANCE SERVICE written down the side.
( Undercovercarrot got done for gross misconduct on..., Mon 9 May 2011, 13:52, closed)

Undercovercarrot...
...we never have problems with the *real* police when I'm attending a case. But we are fortunate in not having PCSO's in the state I live in.
The closest thing is the Aboriginal Community Liaison Officers. They wear the same police uniform (but with yellow epaulettes) and they don't have full police powers.
They are generally good guys doing an often difficult role.
(emadex thinks the world will end on, Tue 10 May 2011, 16:26, closed)