What are some things my dream could mean?

I stand in my driveway, watching cars go by. It’s just after dawn, and still chilly. I’m waiting for a specific pattern. The cars are almost silent, and they zoom by like they are on a highway. My neighbors lawn sprinkler is just barely misting me everytime it points to the far left, and its making me chilly, but I don’t, can’t move, yet. A yellow and then an orange car zoom by going left to right and I get excited, but then a brown station wagon goes right to left and I have to start over. This goes on, watching the cars, for a while. Finally I give up and get in a car to just go, but it won’t start. Then I can’t open the door, and another sprinkler turns on and begins drenching the car. My cell phone is dead when I try to use it, and then my clothes stop folding, like they’re becoming solid. I feel like I’m freezing solid. The weight of my shirt is making breathing increasingly difficult and I think I might p out, and before I do it occurs to me that I killed them all. I am hopelessly terrified. Then I wake up.