You do not understand thermal shock. Remove your windshield and bring it inside. Lower your thermostat to 63° and let your windshield equalize at that temperature overnight. When the outside temperature reaches 90° the next day, rush your windshield outside.
Conversely, wait until winter and your windshield is left overnight in 35° temperatures. Boil a large pot of water, and dump the boiling water on your windshield.
It is not at all surprising that for 150K miles, your car's windshield has never experienced thermal shock.
Your winter water idea shows you might almost understand water conducts better than air. So it's just proof you don't read well. And either way, it's 1000x more extreme than what an laptop screen experiences.
What is required is a sudden change in temperature. For something as thick a car windshield, you'll need a near instantaneous 40° temperature change. If your car windshield was blazing at 150°F and you tossed a bucket full of cold, equalized ice water on it, it's going to shatter.
But you have some good ideas, and I welcome new Apple laptops with quarter inch thick glass displays.