No different that painting plastic decorative shutters on your house as far as the painting process is concerned. The logic of the service tech seems kind of flaky. So do black cars have more problems because they absorb more heat than white cars?
2006 23B Hybrid with 10k round bar WDH
2011 F150 4x4 SCREW Ecoboost, Max Tow, Integrated TBC, 3.73 LS axle, Firestone Ride Rite airbags.