OK, I'll wait in the cell, no problem. Do they supply coffee and donuts? Highly unlikely to happen though -- at least in nearly 4 decades in Thailand never been asked for ID in public, except driving licenses.
Always found the RTP and IO people very polite. Speak to them nicely and they normally respond in kind.
I'm not a fan of the 90 day report, which doesn't appear to achieve anything. After 30+ years of not bothering reporting and no problems renewing the yearly visa, they finally caught up with me due to their computer systems. I made some feeble excuse about Covid, but the IO said very aplogetically that sorry, but they must fine me 2,000 baht. I sighed and said if you must it's OK, and of course thanked them and apolgised for any problem caused. I was a bit disheartened when a friend overstayed his 90 day report and they accepted 1,000 baht cash under the table. Favouritism!
The point is, don't take it too seriously. It's all about money, not catching criminals.