Fly Specks

We own a slightly used Rpod that we got this spring. We parked it next to our shed, but one side was facing the evening sun. That side got covered with fly specks, as did two other sides. Some people say it is fly poop but scientifically speaking, it is really what the flies regurgitate. Anyway, I thought I would take the time, after our camping adventure, to wash and wax the Rpod. Much to my surprise, the fly specks are impervious to almost all solvents I have tried. I talked to a car guy who shows cars and he had little advice other than elbow grease. Wet drying sheets work somewhat as we'll as hot soapy water...but after several hours working, I have only one side done. Any suggestions out there? I plan on waxing the pod within an inch of its life so future fly specks will slide right off!