Hey JessJames! Welcome to the US!! So glad you made it okay and let us know about it.
Funny how LAX doesn't roll out the welcome mat for us newbies
. When the border agent finished processing us at the Blaine, Washington crossing, he actually shook our hands, warmly welcomed us to the US and wished us all the best.
We've had a Citibank account for a couple of years, that we opened while on B2s and they didn't need an SSN. I remember having to sign some form for the IRS though, can't remember what it was. But other than that, it was no problem. You could go to the local SSN office with your passport and ask them first, if an SSN is being processed for you (in case you've been missed out, like us), and if so, if they could give you the number. When we went there, and found out that there was no SSN in the works for us, they did give us our numbers the next day.
Keep us posted!