Dark Night And Black Dogs

I had this dream last night that keeps creeping back into my mind. It bothered me this morning and it still is. Maybe if i release it here... it will go away!
My Dream, in details...

I was driving this long highway, it was a dark night, only my headlights showed me what was around. When the beams of my headlights caught images, some were moving and other were still. I slowed down till this awful sight became visible, it looked as it went on for miles. There were all these black dogs and black puppies. I stopped in the middle of the road, my heart was beating fast and i felt sick. I stared at the sight for..it seemed a very long time in disbelief. Grown black dogs and many black puppies everywhere, some whining, some wagging their tails and ... some dead, road kill sights! I opened my door, and as soon as my feet hit the ground.... the dream ended and i woke up.

I have carried these images, feelings with me all day. I got my books out to research a possible meaning. To dream of dogs the general rule is a good omen. Symbolizes friends, of course the interpretation varies according to the action and other details but is normally straight-forward. Like.. if the dog was friendly and affectionate, it signifies pleasure and happy times. Soooo... for this dream, i have no idea! Would love to hear what you may think my dream of black dogs and puppies could mean. Hmmm? sigh