First Amendment

There is also some research to suggest that the content of specific stickers can make your vehicle more prone to vandalism or theft. With all that in mind, if you insist on expressing yourself with a sticker on your vehicle, is it possible that sticker could get you a ticket in Texas?

It is the mantra of Texas Driving. "Drive Friendly, It's the Texas Way". So, where does flashing your headlights or driving with your emergency flashing lights on in bad weather fit into this?