He should sue their panties off.
So to speak.
Remember (when newspapers were in vogue) it used to be said it was a bad idea to screw with anyone who buys ink by the carload.
In this case you are quite stupid if you screw with someone who has Law FIRMS on retainer.
Like Walmart says, they get paid to sit around most of the time so why not put them to work once in a while.
Considering the number of stores and 24 hour operations, Walmart has seemingly few law suits - guess the lawyers know Walmart isn’t going to ‘settle’ very often