Got caught

I didn't know, should have looked it up, my bad, that "camping" is illegal(class B misdemeanor) in the city I'm in. I was parking in the Walmart parking lot before but I thought to park behind it because it would be darker and have less traffic. Well 5:30am rolls around and I get stiff knocks on my window, a cop had pulled up and noticed the curtains in my car. I got off with a warning but now he knows what my car looks like and that I live in it.