Um, this isn’t really all that uncommon. It has no internal power source, and no moving parts. Unless you washed it in salt water, a one-time dunking followed by immediate drying really didn’t pose much of a threat to the device.
It’s a Sony. I wouldn’t be surprised if it secretly uploaded all the data on it to Sony, where they sort through it and sell what they can to advertisers. If they get caught, they were simply providing a ‘backup’.
Joking aside, sending a thumbdrive through the wash isn’t uncommon. There have been threads on thereliabilty of USB drives before.
A couple months ago, my partner left his cell phone in his pants. Pants and phone went through the wash - when he took the clothes out to put into the dryer, there’s his phone at the bottom of the washer.
I took the battery out and let it dry for two days and it’s good as ever. If you’re prone to leaving things in your pockets, have a look at LG phones. His is apparently all but waterproof. And idiotproof.