Great idea, as long as it's well implemented.
Universal has improved dramatically over the years but they still have times where they put the drink cart in a place that blocks traffic flow during Horror Nights... or maybe it's the people who try to hold their place in line while getting drinks.
I wish they would create an in/out line for these carts (with signage) that allows people to exit for the cart and merge back into the queue once they have their drinks.
Code:
----------------------------|
-------------- ------ |
----------------------------|