That is NOT what the EWR Gate Agents told me.
They told me on 9/13 that I had to use Customer Service (Oxymoron in EWR) to go Standby since I had to pay the fee.
I told them that the ticket was purchased before that fare rule went into effect. They still insisted that I go to "Customer Service".
I did not pay a fee, but I think that was due to the fact that I had purchased the ticket in June.