OK, I’m not a fan of masks and have worn one exactly 3 times over the past year, but stabbing someone for being a dick about it is a bit excessive. Granted, seeing the pics above, it makes sense in a weird 2020 kinda way, but still, there are better ways to handle the question.
There is only one ‘small Westside store’ in the 3200 block of West Roosevelt: a McDonalds.
https://www.google.com/maps/@41.86667,-87.70644,116m/data=!3m1!1e3