For landouts I suggest that the PIC of a private single place glidder must provide PPEs (masks, gloves, wipes) in his retrieve vehicle - and advertise such before launch.

Otherwise no one might agree to go get him. He will then be forced to hitch/Uber/Lyft a ride home ("Can you please pick me up along a dirt road at coordinates X and Y? [click] Hello? Hello?"), drive back with his self-rigger, and disassemble his glider by himself. All in all an unlikely scenario.