I don't usually say anything on plants west of the Rockies but that really looks asparagus fern, A. sprengeri. You may want to ask on name that plant forum.

What colour were the flowers when it was blooming? If yellow, and it grew from a rosette of leaves clustered on the ground, it could be skeleton weed, which is a reportable weed. If so, it would be best to check with the Ag Dept as if it gets hold it can be a big problem.

That is to say Parthenocissus tricuspidata.

After throwing it in a photo program and sharpening up the image, it does look like Carpobrotus to me, too.