Is there a 3-day cooling off period in Oklahoma when you buy a car?

NO.The cooling off period or buyers remorse laws do not apply to the purchase of a vehicle in any state. Once you buy a car it is yours and you cannot return it. If it is a new car it becomes a used car the instant you drive it off the lot and is worth far less than when you bought the car. On a used car the dealer might let you return it if you ask very nicely. It is nothing more than a myth that these laws apply to the purchase of a vehicle.