Vehicles getting stuck on bridges

There's a seriously annoying issue with with vehicle interaction with bridges. If you place a waypoint along a road with a bridge, there's a good chance that the vehicle will bug out at the entrance to the bridge. The vehicle will then ignore further waypoints until you manually control it across the bridge.

This is extremely annoying as it will often cause other vehicles to jam up behind the stuck one. Upon further inspection and when looking at the vehicle through the F7 view, it seems as though the front of the vehicle dips down inside the beginning of the bridge causing the vehicle to get stuck. Maybe the area right at the bridge's beginning isn't considered ground?

This happens with all bridges and only when ai are driving.