Does this seem right to you?? Induction

Okay, my sister is at 40 weeks as of yesterday, has gestational diabetes (borderline), and they decided to induce on Thursday because they didn't want her going past her due date with the GD. So at 6am Thursday she is admitted to the hospital, given a few doses of cytotec (2 doses), then later on (around5pm) started on pitocin. She dilated to 1cm, was 50% effaced, baby at 0 station. No more progress, so they stopped the pitocin at midnight, restarted this am (friday) at 6am. Pitocin started at a low dose, left there for 4 hours, then upped until about 3pm. She was having mildly uncomfortable contractions every 2-3 minutes. MD said she would be by at 5pm to check her, and if having regular contractions she would break her water to help her progress. MD comes in, says that the hospital is pretty busy with people laboring, so they sent her home. SENT HER HOME! after 36 hours in the hospital, tons of meds, etc. It was the MD"s insistence that got her there in the first place, and now she is sent home and told to come back after the weekend and they will start over. She didn't care about the regular contractions, the high BP (130's over 95-100), the fact that she had family members who had driven 7 hours to get there, the 4+ pitting edema in her feet-none of it. THis is a first baby, and no mention was made of any possibility of not having the baby with an induction. Is this common? DOes this happen?? Or does this doc just suck??