[Serbish]

pawn Код:

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    new vehicleid = GetPlayerVehicleID(playerid);
    if(newstate == PLAYER_STATE_DRIVER)
    {
        if(vehicleid == Vehicle_ID_which_you_want_to_make_undrivable))
        {
            TogglePlayerControllable(playerid, 0); // Or use RemovePlayerFromVehicle(playerid); if you want that it just removes you from the vehicle which is undrivable.
            SendClientMessage(playerid, COLOR_WARNING, "This vehicle is out of use !");
        }
    }
    return 1;
}

When you get out of the vehicle you should use:

pawn Код:

TogglePlayerControllable(playerid, 1);