I Almost Hit A Cop Car Tonight And I’m Freaking Out

So tonight after I got off work I went to McDonalds to get food for my coworker. The road I was taking back to the hospital is kind of windy and has some steep hills. I take this road quite often so I know to drive closer to the sides but there’s always cars parked on both sides which makes it hard to stay out of the middle of the road. I was kind of driving on autopilot tonight because I was very mentally drained as I had just finished shift 4/4 (I work as a CNA at the hospital in my town) so when I was coming up one of the big hills on the road I was more towards the middle (this road also has no center line) and a cop car came from the other direction (I couldn’t see him coming) we both swerved a little and he honked at me, but I didn’t see him turn around or put on his lights so I kept driving. When I got home I started a deep dive on google about it and now I’m scared that I could get a ticket in the mail for reckless driving which in my state (IA) is a simple misdemeanor punishable by 30 days jail time and a fine. Should I be worried about this or am I just being way too paranoid??