Hi everyone. I have an issue where I deleted a road but it has left the zoning squares and I can't get rid of them. I'm assuming it has been caused by Zoning Adjuster, but not entirely sure. It doesn't allow me to zone the squares, but buildings do lock to the road that was previously there. Anyone seen this before?

Not sure how to post images, but here's a couple of links:
https://imgur.com/6WauU2v
https://imgur.com/mzJlBWV