Parking truck hangers block parking areas

In front of our company building (in the industrial area) is a park strip directly on the side of the street on the side of the company. on the other side of the road (without walkway) there are station bays marked at different distances. The parking spaces/possibilities are not very large and in some cases the colleagues have to run quite far. Now it happens unfortunately more often, that again and again trucks directly in front of the company on the Pa This is also not so tragic, since most of them are away the next day or the day after. Some drivers, however, now also put off their trailers here, which then block the entire parking space in front of the building up to a week. Unfortunately, in the past there were already unpleasant verbal differences between the drivers and some colleagues who had parked too close to the dikes… I am aware of Is it really important to avoid unnecessary conflicts here, because now some colleagues are already starting to deliberately park in front of the truck trailers…. What are the possibilities here? Probably only to appellate to mutual reason? Or can parking areas also be locked for trucks? I don’t assume that the parking spaces are closed for trucks. I can also understand the drivers of the trucks, but if they would park at least in such a way that they stand with the drawbar at the end of a station bay, not to destroy unnecessary parking space…. This is and remains probably a never ending stoy here…. Thanks already for your opinions.