My mom had something similar (but not as creepy) happen when her and my dad were stationed in TX. She had all of her underwear stolen out of the dryer. Whoever took it, put everything back in and turned the dryer back on.
She never left the laundry area while doing laundry again. lol.
Re: s/o being shocked
The EXACT same thing happened to me when I lived with my ex-boyfriend. I never went to that laundry room again. I went out of my way to go wash at my mother's house. It was really creepy.
"I'm not telling you it's gonna be easy. I'm telling you it's gonna be worth it." -Art Williams
"Two things are infinite: the universe and human stupidity. And I'm not sure about the universe." - Albert Einstein