I was at Ringwood tonight. Signs there still say 8PM.
Yes, all those state parks change to 6:00 around daylight savings time change. I will get the date posted as soon as the park emails it to me. I do not think it is until early November. To date the park has not been enforcing the 6:00 closure other than locking entrance and parking lot gates. If you think you will be cutting it close time wise to get out by closing, please park outside the park to reduce chance of conflicts.