A retired newspaper executive from Denver told Vegas Confidential that Spears was celebrating her release with a mimosa champagne drink during breakfast at the Daily Grill on El Paseo.
The restaurant manager confirmed to Vegas Confidential it was Spears.
During breakfast, she went to the restroom with her champagne flute, while her friend stood outside the door.
After the 11 a.m. breakfast, she walked down the street with her friend, who had black spiked hair.