I was at LD last night and got more info on price matching diapers.

The woman told me that normally it is the boxes of diapers they will not price match b/c they don't carry the "exact" same thing.

I was buying a smaller bag of diapers and she checked it VERY carefully to match the ad and the picture in the ad. I think if the picture in the ad had not been exactly the size I was buying she would maybe not have done it.
She literally took about 5 minutes going over and over the ad.

Also, the price I PM'ed was only $3 off their sale price so she said okay based on that it was not, like, a $20 difference.

So, it does not hurt to try to PM the diapers, just beware they will go over the ad with a fine tooth comb.