40x price increase dynamic pricing on Greyhound buses— any advice?

I’m going to be traveling through rural Vermont for a week in June and plan to take a Greyhound bus from the nearest airport to my destination.

I ordered my ticket on the way there, $12 for an hour ride, makes sense.

I go to book my return ticket a week later, reverse direction for the same route, and it’s $503!

The return route is the same $12 price for the date of my arrival, but for all of the dates after that, it is $503. For an hour-long bus. It is an immediate jump across dates, going from $12 to $503 with no in-between.

I’ve been checking every few days to see if maybe it’s a price window that will move with time, but it hasn’t.

Has anyone else experienced this? Surely no actual human is going to buy a $500 one-way ticket, so I’m assuming this must budge at some point…