I was criminally trespassed back in late Jan from the local Walmart?
No one. Company policy? What was the signage at the door? And they would have asked you to either put a mask on or leave first. The only way you would have been trespassed is if you refused to mask up or leave. Guess what? Their property, their rules. Hopefully you have learned from this. At least you will have time to reflect on this as you drive to the further Walmart locations.