The quarter wash did the trick, as best as I could tell in the lighting of the wash bay. There was actually a bug remover spray at the wash, so I sprayed using that, then their soap, then rinse, then spot free rinse. Worked fine, but I bet it took off the wax. Oh well, easier to add more S100 than deal with hardened sap (or whatever it was).
I'm not a botanist or chemist, so I don't know if it was actually sap... Getting the car washed within about 4 hours of first parking under the tree probably helped.
On a lighter note, we pulled in to a parking lot earlier in the day and saw a pretty beat up mid-90's Crown Victoria. Mom used to have one em, so I guess it caught her eye. She asked me, "Is that what happens when you don't wax the car?" She's starting to understand the importance of the work I do
