I have just noticed when you went out from garage in Reykjavík in Iceland and turn left, between the houses on the right side some AI vehicles come to the main road and disappear. I looked the list of bugs but I didn't see any mentioned bug like that.
Check these pictures:
Btw sorry to my bad English. If you need a video of bug, comment here. I will record a video.
Confirmed and reported in the bugtracker (#3372), thanks for your report. If in future you could give coordinates or at least show where it is on the map that would make checking quicker, cheers