Muslim flag would probably be ok.
Check it out:
A San Diego State University sophomore was forced to remove an American flag from his balcony after apartment managers said foreigners could find the display offensive.
Brad Smith, who had just moved into the Boulevard 63 apartment complex in San Diego last month, told ABC 10 News that he received a written notice to remove the flag a few days ago.
“We were then told that it was for political reasons and that the flag could offend foreign people that live here, foreign exchange students,” Smith said. “I’ve had friends and family fight to defend that flag.”