Lie about the Laundry

"Hey, Clara, I'm supposed to get the uniforms to the team so they can wash them, leave that here." You call, catching your friend on her way out the door of the dressing room.

She steps back into the room, dropping her cheer uniform in her stall. You see her pick some things out of the pile. Her water bottle. Her shoes. Her socks!

"Wait, we need to wash the socks too!" You call urgently.

She turns around, looking at you funny.

"No, these aren't part of the uniform, these are my socks." she looks confused, as you continue to pry.

"Oh, well it's ok, I'm sure they'll wash them anyway!" You assure her, as she drops the socks on top of her uniform and heads for the door.

"Wait, don't you leave your shoes in the dressing room?" You ask again, prompting another suspicious look from Clara.

"I need them, I'm going running tonight." she explains, before turning on her heel and walking to the door. "See you tomorrow!"

Now that she's gone, you're faced with a choice. Do you lock the door, or not? If someone comes in and finds the door locked, they'd be suspicious. That would be bad... Then again, if they saw you with Clara's socks it would be worse. But maybe you could play it off, as if you were actually gathering laundry? Which one is it?