Not sure this belongs in the Battery & Charging forum, but those are common. Telsa does a terrible job at cleaning glass after installation. I have a few spots that I've almost gotten completely rid of. The glass needs cleaned with isopropyl alcohol (be sure to not get it on the interior). I've also heard clay bar works wonders, but I haven't ventured into that realm yet.
Just turn on the climate control and it shouldn't be visible once everything is warm. I only notice mine when it rains and I have the wipers on.