[masswerk]

Well, it may well be that, as a European, I really don't understand how far that kind of mindset may go. My point was really that, when it comes to an individual blocking communal efforts to preserve a city as an expression of personal freedom and/or commerce, there may be always means to take over control of that car, while that may not be the case with automated systems. (There may not be even accessible and standardized controls for manual emergency override.) If so, this is an entirely different "game", with — so far — no known winning strategies.

(You may want to sort this out before inserting potential random road blocks into a city.)