Some banks have the customer sign for the statement to reduce the risk of delivering statements into the wrong hands.
One thought on documenting when the customer picked up a statement: Some regulations (Reg E comes to mind) specifically say that delivery of the statement is counted from the date it's made available to the customer, not when the customer finally gets it (if ever). I'd suggest that any statement hold agreement emphasize that for all purposes, the bank is deemed to have delivered the statement when it's been made available for pickup.
_________________________
John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8