You aren't thinking. Tables are used for folding by other people. Baskets? Like I'm supposed to know which baskets are theirs. If you meant those carts in laundromats - nope, people need to use them.tables? laundry baskets? if circumstances stopped me from returning on time to get my clothes out of the laundry when cycles ended and I learned you threw my clothes in the trash or sold them off, believe me, you would have wished you didn't. That would be a bonafide asshole thing to do. That's not your place to do if you are not the owner of the laundromat.
Almost every single owner of the clothes I dumped to floor knew it was me. I made it clear. I tell them don't do it again. They say no word back. You wouldn't either.

I'd do what you did.