My significant other just picked up a 2015 Grand Touring S. We love the car, but the day we bought it after it sat for a few hours I went outside and noticed a puddle pretty far back under the car. Got under there and it was water so I figured it was just from the air conditioner. This morning after it sat overnight there was another puddle, water again, that seemed fresh. I've never heard of this before when a car has been sitting so long. Anybody know what gives? Anything to worry about? Thanks!