I live in IL and was caught selling an oz of marijuana because someone ratted me out. The cop offered me the same option, that if I ratted someone else out I my charges would be dropped like they never happened. They did not ask to see my ID, they did confiscate everything, did not arrest me or fill out any paper work, but I did sign a paper allowing them to search my room, which they didn't end up doing actually. All they have is my phone number and my name and said we'd be in touch. What are my options?