Looks like an overgrown rat. I had an encounter with one when I worked at a ...
...furniture factory in San Diego. They're very common there.
I went out to the lumber yard to find a certain pile of black walnut for a table I was building. The lumber was stored in the open air, covered with blue tarps. I lifted the edge of one of the tarps and came face to face with a rather large, hissing oppossum, complete with a needle-nosed mouthful of glistening toothies.
I'm not sure which one of us was more surprised, but I guarantee I know which one of us had to change his shorts!
Michael