I would write to US Customs at their customer service address, explain the situation as you stated here, and ask them what you are asking us. If you do this, you may want to have an American friend look over your letter or email and 'Americanize' your English. This would probably make it a little clearer for the person reading it. I think you would probably get a reasonable answer in return, and then you would know. Alternatively, you could contact a US lawyer who specializes in Immigration and ask them for their advice.

http://www.cbp.gov/xp/cgov/toolbox/questions/
The address and phone number is on the bottom of the page.