Quoted from the cashier at RA yesterday 
My response? "Call a supervisor" 
Good gravy. And, she wasn't even seasonal help.  And yes, I was *allowed* to exchange for different sizes, even without a receipt. I had bought them there last year sometime and they still had the RA sticker on them.  
Re: It's illegal to exchange diapers
Good grief!
lol! My thoughts exactly! Illegal?!? What a cuckoo bird!