Hi, I checked the traffic signs. Actually  from the north and south there are two identical signs (traffic_sign=DE:250). This would imply "vehicle=no" in OSM.
Even though it looks like someone has removed the smaller "destination" signs - German "Anlieger frei" below of traffic_sign=DE:250.
I would propose to change the tagging into "traffic_sign=DE:250" and "vehicle=no". What is your opinion?