Fossil Worm in Petrified Wood?

What looks like a Worm is in the lower left corner of the top left image. I have been told that it is virtually impossible for a soft bodied animal like a worm to have been petrified. However, the images below show what to me is a grub of some sort. Specimen is for sale. Feel free to make an offer.

Please address all comments to:

Da Yooper

Opinions Received