This is not a patent on autonomous driving. That would be very hard to do given the extensive prior art. Instead, the patent is basically focused the vehicle switching modes or executing an autonomous motion based on a QR code or some other infrastructure based marker that points at an URL. Many other teams have used infrastructure markers to indicated a change in vehicle mode. For example, California PATH encodes a binary 0101 signal using N-S-N-S magnet orientation, several Japanese teams use RF-based roadway beacons, and a variety of teams use painted markings (e.g., Civis bus in Las Vegas). However, most of these use internally stored references and maps on the vehicles. Also, some of the DSRC implementations conceived by US DOT include autonomous actions based on information received over RF from nearby vehicles. The difference here is that this patent is about using the reference to look up a command over the internet. It is a small delta on existing work.
Having said this, the idea raises all sorts of questions about man-in-the-middle attacks.