"You vill select 3 degrees nose down...zere vill be no discussion...any kvestions?"
Very amusing, SASless; as you say, can't have any of this subversive thinking going on!
Further to my last, if you're using an AI that has an adjustment to the pitch dot / gull wings or whatever that simply moves those parts in the window, then adjusting it is probably not such a big deal, apart from the fact that you are screwing with the 'true' picture of attitude provided by the instrument.
If on the other hand you re-cage an older-style gyro AI to some false horizon, it will then have the dreaded 'pitch-roll error'. That is, a 3 degree pitch difference between the real and indicated horizon will, when the aircraft is turned through 90 degrees, manifest itself as a 3 degree roll indication.
So hooray for the thinking seatweight, I say!