That is correct. You are not allowed to have contact with the faculty, but you can contact the residents if you have additional questions or concerns about the program.
This comes up every year, and I suppose it's because applicants might really want to get into a certain program. My advice is that if some place is really your top choice, you can ask a faculty member from your program to make a call on your behalf. Also understand that most (if not all) programs are going to call the people who wrote letters for you if that program is really interested in matching you. They may also talk to other faculty from your med school that didn't write letters to get another perspective.
Good luck with the interviews.
--M