Wait, aren’t windshields supposed to be either tempered or laminated? How in the hell is a huge shard able to be broken off like that?!

I think that’s just the reflection of a traffic light.

If you’re running a public service, you should have a key that’s trusted by a CA anyway. So why couldn’t you, especially for qr codes that link to an https site, embed a signature in that qr code that verifies that the person that owns parkyourcar.com’s private key also created the code you just scanned? Just like signed pdfs?