Maybe then the objective becomes to deliberately spend as much time there as possible and keep alive the idea that you're going to buy the car then the salesman

Maybe then the objective becomes to deliberately spend as much time there as possible and keep alive the idea that you're going to buy the car then the salesman will also not have wanted to waste his time and not have anything to show for it. Always be prepared to walk away knowing he spent 6 hours with you and won't get a deal while his buddies sold a couple cars a piece. Psychologal warfare.