Yes, I called them and the agent was not able to provide any information for me about this, which I find strange (I will call again and see if I can speak to another agent). The agent suggested I call the state social security office where the card is being sent to (Houston, TX), but when I did, the call was rerouted back to the National number.
The agent stated that I need to wait for my permanent residency card to arrive before I can attend a SS office if I decide to apply for a SSN as the residency card along with my passport is used for identification.