For your particular situation, you could also have used the "Move" instead of the "Ingest" command. When moving files, you can have it create a folder structure on the go as well. This structure can be complex and contain multiple levels.
One of my regular assignments is to shoot property and I like to group the images on month (I bill per month) and then on object for easier retrieval. The variable part of the folder name in the copy/move dialogue therefore has this form:
{datesort:0,6}00 {monthname} {year4}/{datesort} {location}, {city}
Giving me folder names like
20100800 August 2010/20100822 Nieuwezijds Voorburgwal 147, AmsterdamVery powerful indeed
Cheers,
Hayo