Sure, merchants aren't supposed to ask but not many people are going to stand there every day and make a stink about it just to get into a movie so most comply. For those that want to take a stand, the card rule applies only to cards that were properly signed when received from the issuing bank. The merchant can run the card and ask for your signature on the receipt (these aren't chip pin based cards) and then compare your signature to the one on the back of the card. Additionally, MP has recent assembled a loss prevention department to handle the massive amount of fraudulent uses of MP cards. They are cracking down and canceling accounts if they even slightly believe one is violating the terms of service. As part of this initiative, MP is requiring some users to take a picture of their ticket stub and submit it through the app to verify the card was used to purchase a valid movie ticket. I would be very careful about sharing an account...

The card isn't chipped yet... Many theaters are starting to ask for ID now when you go to use the card to match your name to the card. You aren't given a pin to use so you have to run the card as a credit card so good luck to those sharing a card unless they can find a theater that won't ask for ID on an unchipped card.

I would suspect Amazon is going to use their fleet of Flex drivers in Los Angeles to pick these returns up as part of their normal block assignment and cut UPS out of the picture entirely to save the return shipping costs. Amazon has been surveying their drivers the last few months in LA to see which ones have bigger vehicles with the promise of longer block times. At $18 per hour for a Flex driver with no benefits it's a hell of a lot cheaper than paying UPS a fee for every package.