Cars don't travel constantly the same speed as the speed you get from pressing WASD in Nox. They need to stop at red lights/stop, accelerate/decelerate for traffic, stop for a few seconds to park, follow specific roads, etc. All behavior that won't be replicated unless the user spends a great deal of time on it.
And trams of course follow a handful of tracts.
True but if you are at the Metropolitan Museum of Art at 3am, it is suspicious. Again nothing that could ban you by itself, but combined with other evidence can guarantee a ban.