Dream About Difficulty Driving In Foggy Conditions

I had a dream that I was driving my car back into a familiar city. I was very excited to get there because I had had all of these things I was about to do. However, it was becoming increasingly difficult to see the road. I don't even know how bad it was getting until I only had a small window to see through the fog that had formed on my window shield. In the small window I could see that I was not staying on the road. I was in the middle of two lanes matter of fact. I quickly swerved over to one lane but this was the worst time to not be able to see . There were now like 6 lanes and the roads were busy. I was trying to look for the button that helps take the fog away but every time I looked down I was no longer in my lane and about to swerve off the road. But I couldn't see anything and was swerving anyways. The sharp curves of the mountains were making it even worse, making me have to turn. I started to panic and then saw a safety. I pulled off the side of the road and landed right in a parking spot. I quickly turned off my car and started to relax. However, I felt the car slowly moving backwards back onto the highway. I saw the other people in the parking lot looking concerned. I tried to reach to turn the car back on but it was so far and the car was starting to roll even faster now. I don't know if I ended up turning the car back on as I woke up before I could.