BTW, as TEG points out above the Roadster also has the coated windshield but I never experienced any problems with handheld garage door openers.
I think not all do. It was optional.
http://www.teslamotorsclub.com/show...-Upgrades-Review?p=90297&viewfull=1#post90297
...my (new to me 2.0) roadster is at tesla getting some service/upgrades. i asked to install a solar guard windshield. they emailed after i left to make certain i was okay with the negative impact the solar guard windshield apparently has on radio reception...