Is it possible to exclude some directories from a managed autofs map?

Issue

Is it possible to configure automount in a way to not manage a sub directory within a previously defined automount managed directory?

A client's software expects to be able to mount a directory under /home when it starts or unmount it when it stops. In Solaris the -null map allowed this to be achieved.

A description of when this can be useful:

• autofs is used to mount all home directories (under /home)
• a 3rd party application wants to mount a directory under /home
  • a mount failure will render a problem in the application
  • the application 'manually' mounts the directory, autofs is not supported
  • the application will unmount after it is done