I liked that scene. I felt that the hobbits expressions were great b/c it was clear that they were
very unused to that sort of attention. Also it demonstrated Aragorn's humility. Could there have been a better way to achieve the same end? Probably but I did not find this scene horribly out of place at all.
I did however notice that Merry and Pippin's height change was not noticeable AT ALL. Apparently, Hollywood entwash wear off.
As for the bedroom scene...*sigh* It was really out of place. A good bit of the end of ROTK felt choppy and out of place. Not to mention that the bedroom scene felt remarkably like deja vu. (FOTR, Rivendell, similar scene)