White Geoflex caulk around vinyl windows and Azek trim boards. I made a mess on two of sixteen windows. Lost control of my bead and tried to tool it with my fingers but wound up transferring dirt from my hands to the trim. Thirty feet up, I should have just left the fat bead. What's the best way to remove elastomeric caulk residue (and thus the evidence of my grubby paws) from Azek?