You've just been J6'd!

The Sam's Club I work at.
You've seen Guy Standeven in something because the man was in everything.

MAGA! FAFO! Schrodinger's Cat walks into a bar, and doesn't. Dumbocraps: evil people who celebrate murder.

I gotta agree with that. Walmart's got guns, lots of food, restrooms, and honestly, stuff to keep people entertained: toys, books, movies, etc. There'd probably be less chance of people following a religious fanatic if they can ignore her in favor of watching dvds.
So many stories, so little time.

Wal-Mart. One word:
guns!
MAGA! FAFO! Schrodinger's Cat walks into a bar, and doesn't. Dumbocraps: evil people who celebrate murder.

You have got to be nuts if you choose a store with guns.
Others are going to grab them and you run the risk of getting hit from any stray bullets because idiots are going to be shooting at anything that moves and not care or notice if you are in the line of fire.
And I have zero experience with guns so I would not be any good with handling them.
Whatever store I am in I might try and find a basement or fallout shelter.
As for weapons look around and Macgyver them.
Like an arisol can and a lighter.
Bingo.
You got a flame thrower.
Get a broom stick. Find some cloth. Cover it in cooking oil or lighter fluid. Light it and you got a torch with fire to keep them at a distance.
Or do the same thing with a string mop.
Use cans as hand grenades and throw them.
Find a garbage can or a large pot lid and you got a shield.
Etc.
"Please vote to preserve the unique character of Warren…" - Robert Duvall

Walmart obviously. I would just kill everyone in the store and wait till it's over.

I'd hate to be in a situation like this trapped with bloody Walmart shoppers.

Somewhere without plate glass windows seems safer. Maybe a department store or a mall? Ideally somewhere with food and bathrooms and enough space that you can get away from the crazy people.