My advice to you is DO NOTHING. This sounds absurd and cowardish but the fact is you've broken a law which could possibly land you in big trouble with the immigration authorities. It's true that your employer can also get into a lot of trouble with IRS and what not, but there's more harm that can be done to you than the other way around. At this point it's all about who's got better financial resources and contacts. So, keep calm and let your ego aside, and move on. Losing two weeks pays compared to chances of being picked up by the authorities (highly unlikley but it's possible) is dismally trivial. All the best. -JB