What should I do if I lost my passport in the US while trying to return to Thailand?

The most puzzling case of a lost passport/DTV. I've been Stateside for a couple of weeks for medical workups and at my clinic the other day apparently I lost my passport. When I got to my hotel it was not in the bag, and I immediately checked my AirTag and sure enough if was pinging at the clinic. I called the operations, let them know the location and that i'd be back as soon as the clinic opened the next day. (This was Wednesday). Early Thursday morning I received an email from site operations they'd be searching outside, then inside, then finally the ENTIRE clinic and there was no passport. I checked my airtag and there it was, pinging in the exact same location. As soon as I arrived I went right to the location and yup....no passport. The next few hours were searching, digging, looking under shrubs, tearing apart the waiting area I was at the prior day...no passport. But yet...there it was; updating regularly. I played the audio over and over again and it showed it was playing, but nothing being heard. SO...now the difficult decision. WHEN do I report it lost and go through the nauseating processing of getting everyting redone. How long should I wait? Will this thing just magically show up some day? The entire idea of an AirTag is so this doesn't happen, I've guided people to lost wallets a 1/2 world away before but a clinic 10 minutes from my motel and its just gone - like some force is playing tricks on me. Okay seriously...next steps? I want to keep searching as long as I can without waiting too long. Today (Friday) I went down there as soon as they closed and was digging on hands and kneeds exactly where it showed it was and nothing. Most bizarre thing ever. Thanks for advice folks.EDIT: Think there is some comfusion here, I'm a US CITIZEN and back in the UNITED STATES conducting business. I'm NOT in THAILAND currently.