Grand theft auto

Walking along a road between several soccer fields and I steal a car parked off the road in the grass. I think it is a old Mercedes. Somehow I wind up parked in the driveway of the car owner. And his wife or mother comes out and assumes that the guy sent him over in his car to pick stuff up for his daughter. There are two young kids around as she loads a tennis racket and ski gear into the passenger seat. I debate if I should drive off and just steal this stuff, drive the car back to where I got it or just leave right now.