"I see this so often: even though I don't go in to the centre of town very much at the moment, it seems that every other time I do there's someone in a private car where they shouldn't be on Princes Street. Can't help wondering why it doesn't have any bus lane cameras."
This was us, shortly after moving to E'burgh. We'd come out of the Omni car park and were heading for Inverleith--not realising we couldn't go north on Leith St from the Omni.
Google told us to U-turn on Princes St--um, no? We thought we could take a right turn towards George, but also a negative--we ended up in the bus lane.
Spent weeks waiting for a ticket to arrive. (Karma--partner got a parking ticket a while later, when he had in fact paid for parking.)
In retrospect, we should have just crossed North Bridge and waited for the maps to recalibrate, but that's not the normal psychological pattern when humans are following a set route.