Well, my drunkan idea.....
get 1 skyline. take out backseat. have person lay under a sheet
have driver park skyline, get out, and not make alarm noise beep beep go off.
have 3 other "family cars" parked near by with vid cams recording
guy in car has mobile phone or whatever, dunno, im drunk, dont care! and play the waiting game.
of course they could have a gun, knife of whatever so dont try it unless you have ninja skillz