obviously you are not experienced enough to know that there will be many touch points where you need to verify your status. Like showing your passport many times in the same facility (like an airport) Same when in Covid times we had to show vaccination status many times.
Getting an extension is easier than getting in at DMK or BKK. I was grilled on my 60 day exemption when I arrived and warned. Then I got a 30 day extension in Korat. Go figure.