Hi, I'm sorry to hear about your wife's experience with HELLP. You are right to be concerned if her pressures are that high and the meds are having no effect.
I will send your message on to our Texas Group Coordinator, and hopefully she will be able to recommend someone in your area. In my opinion, 10 days is too long to be waiting to see someone in this situation.
In the meantime, please don't hesitate to take your wife to the ER if she begins experiencing a severe headache that won't go away, has changes in her vision (spots, lights, floaters), or just "doesn't feel right". While generally preeclampsia/HELLP resolves itself following delivery, it can occur postpartum and is a serious (can be life-threatening) condition.
Hopefully someone from Texas will be getting back to you soon. Let us know how your wife is doing.