I doubt they will do anything of the sort.
I've filled out the questions I wanted, left blank the ones I didn't like, and never heard anything again.
They don't appear to care/notice as, over the years, I've been designated a represenative household for a couple other issues. Same thing. Fill out what you want, leave the rest blank.
For the 2000 census I just answered the number of occupants question. Left the rest blank. Never heard from anyone about it.
That's my take on it too.