I remember, and this was a few years back, when they stopped that. For the longest time, even back in the 1970s, the park would officially close but you could hang out on Main Street for an extra hour or so and shop. I always that that was kind of neat, even as a kid.
A few years back (I want to say 2012 or 2013) I remember going and when the park closed at, say, 10PM, they had all the entrances blocked to all of the stores (even the Emporium). I think you could get an ice cream on your way out and that was it. I remember that happening for quite a few visits in that year or so and thinking how odd it was.
Yeah, I get it. The park is closed. Still, you have people looking to hand you money... Why not take it? (as you traditionally had)