Dark site close to north Houston

I am in The Woodlands area (North of Houston).  The sky here with the holiday lights has turned from Bortle 7 to like Bortle 9, I think!

Are there any site where I could go that is safe?  Would packup and leave by 1-2 am,  if not, at worse, could book an airbnb or something to stay overnight.  

Any help is greatly appreciated! Thanks