Would I be considered the person at fault in this accident?

I was driving on the highway when I stopped suddenly due to traffic ahead however I was rear ended by another vehicle behind me. It was dark and raining however and I couldn't see the driver behind me nor did I feel safe pulling over immediately on the side of the highway. So I drove to get off at the nearest... show more I was driving on the highway when I stopped suddenly due to traffic ahead however I was rear ended by another vehicle behind me. It was dark and raining however and I couldn't see the driver behind me nor did I feel safe pulling over immediately on the side of the highway. So I drove to get off at the nearest exit about a mile off the highway. When I got to see in a parking lot I noticed I was completely smashed at the end, but the other driver did not follow me off the highway. I wonder if the other driver was safe? my insurance paid for my damaged vehicle however.
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