Plus, what good would that do? The bullet's still in there!
So?
If left it it's likely to shift and cause additional damage. It's less so if, say, it were in your head or arm, but since it's in the foot the pressure and constant movement will likely cause quite a bit of damage.
On the other hand, digging around for a bullet is guaranteed to cause a lot of damage, doing do might unblock a blood vessel the bullet was against, and you'll almost certainly get an infection. It's safer to leave it in until you can find some kind of medical professional, or ideally a whole hospital.
There's probably a hospital somewhere in the mall. But leaving a lead ball in your foot, especially if it's intruding on a blood vessel wouldn't be the best.
Again, you'll do more damage, both long- and short-term, by trying to dig out the bullet. And what do you mean, "intruding on a blood vessel"? Those blood vessels it would be blocking are ones that would be suffering critical leaks if you removed the bullet.
If he rolls well enough he could scrape by without anything.
Right, right, RtD logic. Well, that same (lack of) logic would also be lacking penalties for having a bullet in you.