Is there a way to set the department text field (or any other field on the Contact Information), through the command line like through zmprov?

I'm talking about the field you can see here:
edit the account > Contact Information tab > Department text field

looks like the only possible place is stored in inetorgperson.schema's departmentNumber?

I tried setting that with zmprov, but that didn't work:
zmprov ca xxxxx@ggggggg.com ewbge displayName "Noam Chomsky" departmentName "Sales"

Any clues?

It would be sweet if this is possible, so I can script everything to setup the account fully with all the information in it.