The camera sits inside the car while Keller is driving. They park right next to a red Karman Ghia. In the next shot when Stone and Keller exit the car a few seconds later, and the camera is now shooting from outside of the car, the Karman is parked a three spots away.
When Keller talks to Stone in the hallway of the swinger building, he gesticulates with the right hand. Next shot half through the sentence, he gesticulates with the left hand.
It's evident, at 8:58, that the coroner attendants are actors/extras. When they go to load the gurney into the back of the van the rear attendant pushes too hard and slams the front legs of the gurney into the rear of the can causing him to "bounce" back a bit. Then they rush to the cab of the van and the same extra gets behind the wheel, releases the brake with a jerk, and starts rolling back before his partner has had a chance to get inside the van. In theory the body is dead so there'd be no reason for the rush other than nervousness on the part of the actors.