Cathedral Ledge - Falcons and Overnight Parking?

Planning a trip to NH in the spring - The falcon guidebook mentions route closures in the spring on the Barber Wall of Cathedral. I've been unable to find any recent information on these closures, and I do see people ticking these routes in the spring. Does anyone know if these are still typical, the routes affected, and the typical dates the closure runs?

Second question - Are there any areas in the Conway area to safely park overnight? We don't need a campsite, just someplace to park for 8 hours and sleep in the back of the van. I was planning to head to the nearest walmart as they typically welcome RV's/overnight parking, but the one in North Conway has prohibited this.

Larry S wrote: but the one in North Conway has prohibited this.

The route closures will depend on were the raptors nest

I seem to recall a lot of pulloffs north of Conway heading toward the notch, mostly hiking parking lots but certainly feasible for a van. In a pinch that's probably a 'safe' bet.

Kevin Heckeler wrote:I seem to recall a lot of pulloffs north of Conway heading toward the notch, mostly hiking parking lots but certainly feasible for a van. In a pinch that's probably a 'safe' bet.

You probably wouldn't run into issues if you parked at the Fourth Iron campsite on 302 headed to Crawford notch.