Go after 2 weeks or so
I went to SS office , right after my pasport was stamped. Unfortunately SS office system was not updated (They told us that their system should be updated, indicating the change in status). But still they kept my old SS card and send new card, that have stamp "Eligible to work with INS authorization".
They advice me to contact SS office once I get the plastic card. They will then again issue me a new SS card with no stamp on it.
My Advice- Go after 2 weeks or so by then system might have new info about status and you may get the SS card without any stamp.
Good Luck and Keep me posted