Which all just goes to show how really stupid the concept of using the CAN bus to link every electrical component in a car is.
Simple systems like lighting, the horn, power windows, wipers, and others can function perfectly fine as stand-alones...but today's insane obsession with making every dammed thing as complicated as possible refuses to acknowledge that.
The KISS concept is a thing for a reason.
EDIT: I was really glad to see the fellas who liberated that poor oppressed vehicle were being socially responsible and wearing masks, too.