Any issues overnight parking at roadside pullouts?
Yes, no, kinda, sorta. The truth is that the local land owners and LEO's that patrol the area really do not want camping. That being said, if you don't appear to be setting up a "camp" and are simply
pulling over to get some rest, there's less of a problem. Cops understand that this stretch of the coast is a long, twisty and dangerous place and that it would be
unsafe to drive further while you're drowsy - especially a big van, at night.
Mid-week stays and winter months are a lot less crowded and not as tightly enforced as peak seasons/days. Sometimes the LEO will just sit there until you move. On one occasion, shortly after dark, a county deputy explained that if I didn't move by the time he came back I'd get a ticket. He was surprised when I asked how long that would be, he chuckled and said "as long as it takes me to drive to the county line and back". My guess is that they probably do a lap once or twice per shift.
I like to watch the sunset in one place and "rest" in another a few miles away, preferably picking a less popular/developed spot that looks like you just pulled over.
Your mileage may vary....