Headlight Switch problems of the 2012 Kia Motor Optima

I have reason to believe that my car has been hacked due to an incident that occurred approximately one week after being aggressively followed by a mysterious black Nissan SUV with pitch-black tinted windows at my work location. During the incident in question, I was on the phone with 911, with the bluetooth of my car and phone on and connected, calling about a red car that appeared to be following me. I drove around my block and lost the red car but when I returned back to the street where I live, I slowed down as I noticed a slow-moving black SUV with pitch-black dark tinted windows (reminding me of the black Nissan SUV that I encountered a week prior at work). I remember its headlights being off. This time, I was in close proximity to the black SUV- it was on my left side driving the opposite direction and it also appeared to slowed down and got parallel to my vehicle). When my car and the black SUV where almost next to each other, all the interior lights of my vehicle turned on and I heard a sound that sounded like all the doors unlocked. As a petite female who was driving alone at 10pm or later that night on an empty back street, I got terrified and quickly pushed on the gas to get away from the black SUV. With all the interior lights on while trying to drive at night, I had no visibility whatsoever, so I kept pushing the light switch by the driver's side, but no matter how many times I moved the switch, the interior lights did not turn off. After driving, I estimate, 1000+ feet, the interior lights turned off and I regained visibility. At that point I could see my apartment was coming up so I quickly drove into the gated parking area of my apartment complex. As I recall the incident, the light switch was on "door" when I was attempting to turn it off while driving. This incident reveals security/safety vulnerabilities in my vehicle.