Unfortunately not. Universal Studios did not exist in the 70s and neither did the internet. Instead of flooding Town Hall with complaints, they'll rent cars and drive to Universal.
Which is why I cannot fathom for the life of me why Disney would allow this. It makes NO sense to the prevailing business strategy at WDW. The entire point of their strategic operational plays (Dining Plan, Magical Express, and Extra Magic Hours chief among them) is to keep guests on property at all costs. The cost to Disney of a guest who chooses to venture off property even once is astronomical because that guest now has a rental car and is free to stay off site, eat off site, buy groceries, etc. Instead of a "Potter Swatter" this would be Disney signing on the dotted lines while Universal builds ANOTHER Potter.