I would guess that the store owner would refuse, but he might show you a copy of the agreement or explain it to you. As I posted earlier, at least one CD (one that I own) says: “Ask your retailer for a copy of the rental agreement, also see enclosed copy”.
You bring up an interesting point though, which I alluded to earlier, which is the the fact that the rental agreement is with the producer, but you’re getting it from a store. I do wonder how this affects the validity of the rental agreement, depending on the store owner’s agreement with the distributor, and the distributor’s with the producer.