You're absolutely right!!!!! ... If they are really that proud of their flag, then they should take better care of it and, as you say, leave the National Flag hanged overnight is an insult to the flag (with the exception of particular cases in which, however, the Flag, if displayed at night, must be properly illuminated and, in some cases, guarded by armed guards ... but this is not the case of a normal company), so, also the owner of the company should be prosecuted for insult to the Flag!!!