Leaving aside the myriad political & economic implications of this, my VW's navigation quite frequently thinks I'm on a different road, or it misses a speed limit sign, etc. It's bad enough when it jerks the wheel a little because it got confused by an off-ramp, or slams on the brakes in the parking lot because someone is walking a mere 30 yards behind me, but boy if my car started dropping speed to 35 because it confused the freeway with the frontage road I'd be pretty mad.