Whoever's pointing that out is totally wrong.
You need a witness. The Notarization official or any employee of the embassy cannot be a witness.
https://th.usembassy.gov/u-s-citizen-services/local-resources-of-u-s-citizens/notaries-public/notary-and-other-services-frequently-asked-questions/
Passport name and International Airline tickets must match. Even if you slip by on the departing flight, getting past immigration on the other side will be difficult.
Perhaps you need to get this corrected before you leave.
Save yourself a headache and stress.
"Our staff cannot act as witnesses. If your document requires the presence of witnesses in addition to the notarization, you must supply these witnesses and each witness MUST have their own scheduled appointment. Witnesses must bring their valid government-issued photo ID. You may also find someone in the waiting room willing to assist you as a witness."
https://th.usembassy.gov/u-s-citizen-services/local-resources-of-u-s-citizens/notaries-public/notary-and-other-services-frequently-asked-questions/
Hua Hin has loads of Russians along with other Europeans. I miss the days of pandemic emergency measures where the place seemed like a small seaside village with virtually no tourists.
Anyways still a pleasant place after Issan.
Sorry to hear you had a bad experience.
I've definitely enjoyed every time I have stayed there.
Luckily Pattaya has a plethora of Hotels. Hopefully one will see suit your needs.
They always overreact. Many people never even new about the misspelled sign or of the "Outdated " memes.
Now they've put it in the spotlight and the majority are having a double laugh at the thin skinned government being constantly in an overreaching and over board response.
Laugh at yourself and be humble, you'll get a better response.