Presumably the dealer checked the power steering fluid level and belt tensions. I would check the power steering fluid if you have not already done so.

The creaking noise sounds weird. I don't think you should experience that but you would have to clarify by what you mean and where is it coming from before I can comment further.

I find that there is some wind noise but you know I think it is worse on the passenger side when I have the window down and then put it back up.
If you close the door with the window up, the noise is not too bad. Probably could use an adjustment but in my case it is not worth the risk of buggering it up.
I can live with that since my exhaust is no longer factory and is louder than the wind noise.