Well, some interesting news others who are concerned about coding might find interesting.
I brought my car in for service because the hood wouldn't latch.
While in the shop, they applied a "recall" to the car, SIB 61 36 12. (Does anyone have access to the bulletin? I'd like to know what it was for.)
Two things: the reprogram wiped all the options -- disclaimer is back, weather band is gone, fob control of the mirrors is gone, etc. Second, the dealer didn't say a word about the coding and, apparently, the car took the "reset to factory" just fine.
So, those of you who are worried that your dealer will notice the coding need not worry any more.
MY12 335i ZSL with a deep dive into the options list
ED: 2012-07-19; Arrived in Jersey City: 2012-08-23