Glad that worked out... GENERALLY people are honest I think, and they return a box that isn't theirs... It's so easy to transpose numbers but it's slightly less excusable on packages since, and that's even more so true right now since deliveries are slow for the USPS after Valentine's, but crap happens.
I had my carrier trying to get me to get my brother's wife, who lives out the road from me with her mother right now, to return a package she delivered to them on accident... Apparently calling her wasn't getting her to return it to the local PO or even leave it out for her to pick up.
I guess that means it's somehow up to me to track down my brother's soon-to-be-ex for her to get the package back to deliver it to the right person.