Hi Morenewhair,
I am not sure if you would be able to hide it completely in a week but i would definitely say n a month. In a week time you transplanted hair would still be there and its kinda tough to cover it up with the native hair. Atleast for me it wasn't possibe I am sure there would be others who would have been able to manage to do it. I didnt go out till 4 week without a hat. I feared that my friends would notice it but the first day i went out without hat they wern't able to.