What's your aversion to leaving any form of evidence behind? That's where one of the few golden rules that actually exist (which retard OP left out) of don't go back to that place for at least a few weeks comes into play.

Say, against any likely odds, an employee somehow finds a shoe box with your old ones in it amongst the dozens of identical boxes that same day and alerts LP. LP then runs back through all the footage to see a grainy image of you putting on the boots, putting your old ones in the box, and walking out....so what? They have 0 means of identifying you. They can barely see your face as is, and they will never remember it. You simply just don't go back there the next day. Get in get out as fast as possible. these are the golden rules (again that Retard OP left out)

Wtf are you doing cutting up and concealing a shoe box? that's infinitely raising the possibility you get caught red-handed. Go in, out on your boots, and walk out. fuck the empty box left behind your long gone. You're over complicating it so much