You should start the car in park and not neutral and why are you wasting fuel by idling so long? You shouldn't be idling so long, you have a modern car not an old one that needs to warm up that long. Also once you are moving you are also able to warm up your ATF and not just your engine. There are places in the US(Denver to name one) where you can get a ticket for idling in your drive way because you are wasting fuel and causing more pollution.