pwood,
Under which code section are you using to require the unisex restroom? If the employees
( and potential customers ) have access to a code compliant restroom within 500 ft.,
then they are, IMO, compliant.
These mini coffee kiosks would be considered a food serving type "Business Occupancy"
with the local Health Dept. oversight. See Section 303.1, Exception #1, from the 2006
IBC.
Also, if no tables & chairs are present at the time the C. of O. is issued and the
employees have access ( within 500 ft. ) to a compliant restroom, then they are good
to go.
If after the C. of O. is issued, the tables & chairs show up, then the C. of O. "could"
be voided / suspended until compliance of other code sections are achieved.
.