Until there is the "black box" Cameny plans, than yes - objects are just statics right now .... but thats probably, because you cant externally conduct that action before you go into the "vehicle mode" by entering it. They maybe could do a object mode doe. Some 6-10 entry keys like the vehicle have for opening stuff on buildings and props, but that will be probably best, when the broadening for controls comes out, with the mesh based script-entry for full-click cockpits. Then maybe from the 1.st person view, such object could be used with-out entering them like a vehicle and just pointing and clicking at the mesh in mind would execute the script.
... but i think it will have a javascript of the vehicle kind too, so there is no problem doing it like that for now - aside it taking place in the vehicle-spawn menu.