I don't think I would have a wedding at a site that has an 11 PM curfew. We are all grown up kids.
Not sure if I know of anybody that operates at that time of the night. Maybe call the Winnipesaukee Taxi????
This is a big reason why I recommend Oliver's Lodge on Meredith Neck. You can party all night into the wee hours of the morning. Even do a little 'dipping when the sun rise.!