No, that's not a sign for the university.
In the bedroom of this Lakefront boathouse that's on the market, there is a blue "Duke" sign that resembles the campaign materials of David Duke, the white supremacist, former Louisiana State Representative, and former Grand Wizard of the Ku Klux Klan. He unsuccessfully ran for a number of political offices, including Louisiana governor and president (the sign in the photo appears to have "president" written under it).
· 8008-10 Breakwater Dr Unit 63-64 [Realtor]