the 71-year-old real estate scion awaiting extradition to face murder charges in california appeared in new orleans accused of illegal gun possession .
his defense team was expected to challenge the case by accusing police of searching durst 's hotel room in the city without a proper arrest warrant .
as a shackled durst appeared to be sleeping in the courtroom , the judge raged at his attorneys for being unprepared as they requested to delay the hearing .