That's proper funny!
It sounds like a scene from Police Academy or even better, Some Mother's Do 'Ave 'Em.
Officer Frank Spencer: Get down on the floor and put your hands behind your back!
Prince Andrew: Do you know who I am?
Officer Frank Spencer: No! I'm new!
Prince Andrew: I am Prince Andrew!! The son of Queen Elizabeth!!!
Officer Frank Spencer: Prince?? Prince Andrew?? (Looks bewilderedly embarrassed)
Prince Andrew: YES! Son of The Queen!!
Officer Frank Spencer: Queen? (Points at the Palace) ... in there?? Ooooooh!!!! .... I'm very pleased to meet you ... Spencer ... F.W!! (does a curtsy)
BUNCH OF ROYAL GUARDS MOVE IN AND STARE ANGRILY AT FRANK WHO SMILES SHEEPISHLY..
Officer Frank Spencer: "......I'll be gettin' off then?"