With respect also: Yes, FreeLanceing, local knowledge matters. BUT Subterranean termites function basically the same throughout the country.
My comments were for subterranean termites.
The OP lives ins an area where Drywood Termites are also common. They do not need contact with the soil. Swarm out at night, and they could infest the truck camper, however it is unlikely. Best control is fumigation. Soil treatment will NOT work as they have no contact with the soil.
FYI Local knowledge: You do not have Drywood Termites in the Grand Haven Mi. area.
"Flyers" do have wings, for a short time. They leave the colony, and fly up into the air. They are weak fliers and often are just blown around in the prevailing wind. They fall to the ground and break off their wings while they seek a mate and a place to start their colony.
The OP Should have an expert(Local Ag extension office is good) determine if they are subterranean by looking at a sample of the insect. If so, no worries.
Happy camping to all.