Restroom needs combination lock with additional privacy features

[Yikes]

City hall has single-accommodation restrooms. They want to install a lever handset than on the hallway side has a programmable combination lock, so that only users with the valid access code can enter the restroom, like this:


Problem is, when a person is using the restroom, they need another a privacy lock so that someone else who already knows the combo won't accidentally open the door on hapless user.
The city manager wants to add another deadbolt with a thumbturn on the restroom interior side of the lock, like this:


However, I don't see anything in 1010.2.1, 1010.2.4 or 1010.2.5 that permits this.

What code compliant solution do you suggest to address the privacy / accidental entry problem?

 

[arwat23]

Seems like something like this could work:

https://alarmlock.com/media/pdfs/ALA531-DL4100-Restroom-Conversion-LR.pdf?

 

[walker.t]

Seems like something like this could work:

Any chance that the “Push to Lock” button would need to have braille? The brochure says it has an instruction sign, if that is to say they don’t believe the lock is intuitive for sighted users then I can’t imagine a blind person will figure it out very easily.

 

[arwat23]

Any chance that the “Push to Lock” button would need to have braille? The brochure says it has an instruction sign, if that is to say they don’t believe the lock is intuitive for sighted users then I can’t imagine a blind person will figure it out very easily.

Ah crap... Maybe then.

 

[Yikes]

Ah crap... Maybe then.

Or maybe just remove the "push to lock" lettering and make it intuitive for all.

 

[danSAA]

Add compliant signage next to the lock?