I have a 2016 EX-T and lately I have noticed that when my car has been parked outside in the heat for a few hours, part of the air vents that directs the air are facing up. When I move them back down to direct the air towards me, they slowly rise back to directing air upwards. They typically will remain stationary once the air coming out of the vents has had time to cool down a bit (maybe a minute or so). Has anyone else experienced this? I would expect that this isn't considered normal, right?