This dream contains several elements that can be interpreted to provide insights into your thoughts and emotions.

1. Being in the Car: Cars often symbolize your journey in life or the direction you're taking. Since you were in the backseat, it may suggest feelings of being a passenger in your own life, possibly indicating a lack of control over certain situations.
2. Your Dad Driving: This might represent authority or guidance. It could signify your relationship with your father or a desire for guidance in your current life situation.
3. Sleeping During the Ride: Sleeping can symbolize avoidance or a need for rest and reflection. This may indicate you're processing something subconsciously and not fully aware of it in your waking life.
4. Your Best Friend: The presence of your best friend suggests comfort and familiarity. Handing her the pillow could represent your willingness to support those you care about, even when you are preoccupied with your own concerns.
5. Almost Home: This can symbolize a sense of nearing completion in a phase of your life or personal goals. It may also indicate a longing for comfort or security.
6. The Black Truck: This element could symbolize an obstacle or something that's blocking your path. The fact that the truck is in your driveway but the driver is absent may represent frustration with situations in your life where things feel stagnant or where you feel blocked without a clear reason.
7. Your Dad's Reaction: His frustration could reflect feelings of impatience in your life regarding things that seem to be moving slowly or not progressing as you’d like.

Overall, your dream may be highlighting feelings of being out of control in your life, the need for support from friends, and a frustration with obstacles that seem to be impeding your progress. Consider reflecting on areas in your life where you feel stuck or are waiting for something to happen, and think about how you can regain control or seek support from those around you.