The Disneyland issue is in regards to liability and insurance because both are amusement venues with facing similar issue. Have you ever been to Disneyland? It's the happiest place on earth and you don't need guns there. But the more important reason I bring up Disneyland, is that they, like this pumpkin patch are not public venues, they are (essentially) privately owned companies, run on private property, and they get to decide what liability they want to take on. That is what makes the USA great, the freedom to choose, for the most part, to run your home, your business or other private ventures as you see fit, providing you don't violate someone else's rights. It is not a violation of a custormer's rights to tell them that weapons are not permitted, that photographs are not permitted, that outside food is not permitted, that shoes are required for service, that hard hat's must be worn underground, that bicycles are not permitted, or whatever....
"An employer may not prohibit any individual from possessing a concealed weapon if the weapon is in a vehicle driven into or parked in a parking facility even if the vehicle is used for company business. A business may, however, prohibit individuals from carrying or possessing a concealed weapon in the parking lot of the business outside of his/her vehicle. However, an individual cannot be charged with trespass merely for possessing a firearm in a vehicle driven or parked in the parking facility."
Oh, and how about this? Liability and insurance issues.... True it's a school so technically not private, but what catches my eye is the issue of insurance not covering liability when guns are permitted: http://www.huffingtonpost.com/2013/07/08/kansas-school-gun-insurance_n_3562271.html
Do you think the states where teachers are allowed to carry don't have insurance ? They don't have insurance from that company, but I'm sure there's other companies that cover them.