Is there a way to use the default select field type and set an option to disabled?

[joeHillman]

Is there a way to use the default select type and set an option to disabled?

The use case I have is for a testimonial block...
I currently have New, Submitted, and Approved status in the select menu.

Using the hooks I can change the new status to submitted after the user has filled out the text area and submitted the form.

What I am unable to do currently is either remove the NEW option after submission, build the option menu and add to it after submission, or set a disabled flag on the options object entry.

The documentation does note that it only expects label and value, but I've found some easter eggs here and there so I thought I'd try.

I suppose I could use a custom UI element, but the ability to disable an option, I would've thought would be supported out of the box.