Interacting With Surface When Flight Model Disabled

I am using FREEZE_... events to disable the flight model with SimConnect client controlling the positioning of my object. How does the surface interaction work in this case? Is it still active? For example, if I land my SimConnect-controlled helicopter on a slope, will the contact points still "sense" the slope and tilt the aircraft accordingly? or will it stay level, and just sense the ground underneath? Or, the worst case, will it ignore the ground and just keep falling towards the center of the earth?