I feel your pain, literally. I had a failed balloon catheter too (no amniotic fluid and baby's head against my cervix- they couldn't get it through) It was horrendous. Worst part of the whole birth.
They needed to get baby out one way or another so proceeded to break my non existent waters & start the drop. Fortunately labour started but it was my 2nd baby so I was a bit 'easier' to get into labour on the drip I think.
Good luck. I hope you have a short and safe birth.