I was previously OPS, what happens with my FICA Replacement Plan account?

Withdrawals from the FICA Replacement Plan may be made at the following times: termination of employment, retirement, participant’s total disability, or participant’s death. 

Therefore, if your employment remains active (even in an OPS capacity) you are not eligible to take an in-service distribution, which includes rollovers. To withdraw funds from your FICA Replacement Plan balance, your employment must be fully terminated.