Taxonomy access filters hide content in SiteMenu, but don't hide the vocabulary title

SiteMenu is a great addition to drupal. Here's a minor bug.

I have several roles on my site and content is visible to certain roles using the taxonomy_access module. SiteMenu filters out the content correctly based on role (ie. does not show terms), but it does not remove the vocabulary title for those terms. What you see is something like:

Vocab1

Vocab2
-term
-term

where Vocab1 is the restricted content. This shows the user that the vocabulary exists, when it should be hidden b/c no content is available to them. This can be a problem when the restricted Vocab is sensitive (say, Employee Reviews, or Top Secret Instructions) and really shouldn't be seen by other users. Is there a way to *not* print the Vocabulary title when it is restricted using taxonomy_access?

This is a great module and thanks for the work that has gone into it.

Best,
-edudx