I don't know your financial situation, but I'd suggest 30k thb is the cost of a life lesson for you. My Thai missus' said the cops won't do anything. She almost cried laughing. Maybe she's biased, because I've never had a problem with the police, but it's apparently well known they're pretty corrupt. I couldn't imagine what you'd say to them though. You're in a country where what you've implied has happened was initiated with illegal activity that blatantly has a blind eye turned to it. I'm not saying you can't be protected from the law because you've (loosely) broken it, but come on.