I am not an expert on this issue, but shouldn't the publishers supply information in variable formats for people with disabilities? Same people that write numbers on the buttons in the elevator, put brail tags there. Taking a snapshot of that would probably be a violation of copyright laws since it's being taken by a device not approved by a publisher.
Talk about a massive pile ups when hackers get into the software controlling the platoons. Professional driver of the lead vehicle may also cause problems while texting, drinking coffee and reading a newspaper all at the same time. Also, defeats the purpose of having a car - driving on your own... If you want to be in this type of a setup, take a train.
What's next? Advertisement on fruit? Sure... just cover all my food with viagra ads.