Arsenal boss Wenger facing Euro ban
That defiance is certain to land him in further hot water when Braamhaar's official report reaches UEFA HQ.
A spokesman said: "Article 70 of our disciplinary code states any coach who is sent off during a game must immediately remove himself to the stands.
"That is what happened with Barcelona coach Frank Rijkaard in Lyon on Tuesday. It is no excuse for a manager to say he could not find a seat."