First off, stop freaking out. The worst they can do is fine you,
I am not sure how the procedure is in your neck of the woods, but once they write you a citation, you get a court date.
Do what you can, if anything requires a permit put in an application right now. You have to make some real progress. Call a scrapper and sell by the pound.
When the court date comes have plenty of evidence that shows real progress, and ask for an extension. But take two warnings. Do not try to bullshit them, everyone tries and they expect it. They are more receptive to a straight answer. And realize that they will make you do it eventually. The fines keep adding up until the liens on your property is more than it is worth.
Oh, and clean up your neighbors lot first. Permission or not, your junk has put him in a trick bag.
Paul K. Dickman