Can you park overnight. If you park and rest how long is the limit you can stay and rest? Do they close the rest area at night?

The rest area and bathroom facilities are always open.

No overnight parking, however there is National Forrest land less than a mile towards Mesa Verde on the same side of the road with 15 campsites with legal overnight parking/camping for up to 14 days, accessible by any vehicle

I’m pretty sure overnight stays are not permitted as is the case with pretty much all rest areas. Rest areas are open all night. There are usually people that make there rounds to check on things.