Can I be sued for more than my insurance coverage?

I was involved in an incident with a person on a motorcycle. I was making a legal u-turn while he was coming from a curve. I didn't see him coming. He dropped the bike to avoid hitting me. I didn't hit him and he didn't hit me. He refused paramedics and calling the police but I insisted because I was hysterical. I got a ticket for failure to adhere to right of way which I'm pleading not guilty and he for not having the proper endorsement to ride a motorcycle. No police report was done and he insisted he was okay. Now I'm being sued for more than my insurance coverage. What does this mean?