Don't your nav turn signals remind you they are left on?

I was on the road behind a navigator that was weaving through traffic, and the turn signal from his last manuver would stay on till his next manuver. This guy was clueless. Sounds like these vehicles are just dressed up pickup trucks! No chime to say, hey idiot, cancel the blinker?

surprising, because inside the cab - the turn signal chime is loud as hell.