Perfectly acceptable.
You do not show up for work, you do not get paid.
The state, governor, or which ever body as required by statute, needs to declare these seats as VACATED by those who pulled this little stunt to shirk their constitutional duty and avoid the vote, and call a special election soon, within weeks, to fill the empty chairs. No salary, no benefits, nothing, and forbidden to run again for any public office. See ya!