Since the direction of the air vents are correct I would leave them alone. When they installed mine I questioned many times on why my front and rears were in the opposite directions of each other. It looked very strange to me but I found out later that is how they are designed, at least for the US versions.
If you will be purchasing ANY AT&T services online or in store could you mention that you were referred by me? My Employee Referral ID is eo4489. This would be a great help and it costs you nothing, thank you!