I don’t know much about possums, but that looks like the possum from hell!
Opossum Slide:
All opossums are from hell. I had one crawl up my garage dryer vent once and get stuck. I didn’t notice and fired up the dryer. I DID notice a funny smell 20 minutes later… then noticed the long tail sticking out the back of the dryer. Neither hubby nor Animal Control could pry that thing out of the vent. Animal Control accused me of killing a protected animal (yes, they are “protected” in CA).
Finally, they got him out and washed out the dryer exhaust and drum. Once in a while, when I did laundry, I still caught a whiff of opossum.