[Artemis is doing her best to stay away from people, but she also didn't want to stay at home. She didn't want to lose any more of it. Ever since she woke up she's had the Midas touch, but without the shiny gold. She's turning things to stone.
That might explain some of those random statues you saw on your way to wherever you find her. Maybe she's in the clothing shop trying to cover up her hands, but only turning the gloves to stone. Maybe she's at one of the food carts, making stone kabobs.
At least the clothes she was wearing to bed—black tank top and green, cotton pants—managed to stay cloth.]