I second the suggestion to get the student newspaper involved. Knowing that age group, they would probably love to write an article exposing some of the administration’s “dirty laundry” and it could generate media attention so that the rogue admin might be shamed into doing the right thing and not stifling conversations among parents.
One other idea is to contact the office of institutional advancement - I am guessing that they have staff members running the parent fundraising program and they would probably not support what the administration is doing. I worked in IA at a top 20 university and I know for a fact that IA wants to keep the parents happy!
Keep us posted.
ps - link to names of parents on Parents Leadership Council:
http://giving.tufts.edu/parents/leadershipcouncil-members.html
The “message from the chairs” has an email address:
http://giving.tufts.edu/parents/leadershipcouncil-letter.html