One can now specify vehicles that are prohibited for services/shipments. Much like one defines allowed vehicles, one can define disallowed vehicles as follows:
{
"id": "hamburg",
"name": "visit_hamburg",
"address": {
"location_id": "hamburg",
"lon": 9.999,
"lat": 53.552
},
"disallowed_vehicles":["vehicle_1", "vehicle_2"]
}