I'd skip trying to "work with" the ACOG at all and focus instead on the publicity aspect. Hospitals, espcially for profit ones, don't want their share of the pie to shrink when it comes to labor/birth. Why not exploit that and put the spotlight back on them. If they truly believe that their customers will take their dollars elsewhere it can provoke change. It's worked well in other areas where they have succeeded in reversing bans like these.
I mean this comment with the upmost respect but if the ACOG is looking out for it's members, why would it listen to a family doctor who isn't throwing intervention with no medical evidence (other than "expert" opinion) at birthing women. It seems like there are better avenues for your energy.
So it's back to determining support women birthing in your hospital. The suggestions that I have are not going to be the easiest to implement but I truly believe they will be the most effective. Would it be possible to solicit the help of local ICAN groups, birth groups, doulas, etc to raise awareness to this issue? Do you know of any clients or other mothers that might be willing to take a stand and organize a rally, notify the media, call in, etc? Even if someone on the ICAN list can bring this to the attention of other women and ask them to call in (could you provide contact information?). The ICAN women have done call-ins before to doctors offices in order to protest vbac bans. Is there a mother who would be willing to contact or talk to the media, even local newspapers? A good reporter would want to talk to affected women as well as doctors and hospital personnel to get the full story.
I know those aren't easy but we've been doing stuff liket his in NJ to protest the high c-section rate in this state. I know change won't be immediate since we are talking about a statewide epidemic but the information is getting out there. Hospitals don't want bad publicity and some are getting it. Others are clearly losing patients due to the word getting out.
I'm so happy to hear your concern and frustrated to hear that another hospital is banning vbacs. I just hope that others can join in.