I got my O-A visa today,.Thank you everybody here for the help and helpful posts. Here's my experience.
I went down to LA on sunday night. Stayed at the Rodeway Inn. Nice rooms at a reasonable price and easy 5 minute walk to the embassy.
I showed up at 9:00 am monday morning. There was a short line. You hand your id card to the security guard downstairs. He gives you a badge that you can use to take the elevator to the 2nd floor where they process visa requests.
there are two windows that say 'Visa' on them. You hand your original and two copies to one person. That person checks your forms and highlights the critical parts on each form. The amounts for the financial documents. The date for the airline ticket to go to thailand. If everything checks out, you go to the other window and the other person re-checks your documents and hands you a receipt for your money order. That form has a stamp on it that tells you to come back on the next business day between 10:30 am and 12 to pick up your visa/passport.
TLDR : Answer Summary
This user shares their experience obtaining an O-A visa at the Thai embassy in Los Angeles, detailing the process from arrival to visa pick-up, including tips on accommodations and document handling.