✔ 最佳答案
1. Definitely CBP will make trouble.
In term of the Permanent Resident issue, no one knows. If you are lucky, they will not really care. Otherwise, prepare to fight your residency in front of immigration judge (confiscating your Permanent Resident Card does not mean you lose your residency, as CBP does not have the right to take that away. An immigration judge is the only one who can make the determination, unless you give up yourself).
As you will be given your chance to fight for the residency, they can't ask you to return immediately. In other word, you can get back to the U.S. for sure.
2. Community College is your only choice. At this moment, it takes about 2-3 years for you to transfer to an university.
3. No - fingerprinting is needed (which U.S. Consulate can't do it).