Parking near Raven Tor was out of order on Saturday and sounds like it was even worse yesterday with lots of cars and vans parked on the verges. Maybe a couple were anglers but the majority will have been climbers.
If the bays at the left or right end of the crag are full then best to park at the car park further down the road at the the start of Tideswell Dale. It is only a 5 or 10 minute pleasant walk back to the crag. You could also deposit your gear, pads, passengers etc at the crag on the way past.
The Peak Limestone guide says that inconsiderate parking has threatened access in the past.
Post edited at 11:35