No Exponential Height Fog in certain area

We’re working on a networked game that happens over a large map. The map uses a sky with a day/night cycle that uses sky light, directional light and exponential height fog. We’re hoping to have the day/night cycle on the server so the same time of day is replicated to all clients. Some areas of the map are “inside” but yet it is very foggy when the players go inside. Is there any way to turn that off for a player? Is there some post process setting I don’t know about maybe? Usually I would just turn off the fog but then it would get shut off for all other players on the map who are outside as well.

Thanks for any info!