Naming issue has to do with this segment https://www.waze.com/editor/?env=usa&lon=-95.46011&lat=29.73555&zoom=8&segments=57819260. Historically, Hildago west of Post Oak was one-way going west so you could either turn left onto Post Oak to reach Richmond Ave or go straight on Hildago St. That changed a couple of years ago and now this segment is a left-turn only onto Post Oak. If you check SV of this segment you’ll see that they’ve even added a barrier to prevent cars from changing lanes.
I hadn’t considered the road type but this looks more like a ramp than a street.