The quarry is owned by the city and then it's operation is leased (by bid) to Rock Divers. Well, guess what. Rock Divers lease is up for re-bid.
You should email the city, mayor, city council, and the chamber of commerce
and tell them of them that you came to their city and couldn't spend money
because the people who ran their city-owned-park were acting like idiots.
Also remind them that this affects their tax revenue.
I doubt anything will happen of it, but with their contract up for re-bid
and renewal, it might create some "sparks".