Even though this is a state park, it is privately managed and the management company charges admission even if you have a state park pass. Also, they only take cash. Neither of these points were apparent from the park's website.
The technician was extremely knowledgeable about our boiler, explained exactly what steps he was taking to diagnose the problem, what the issue ultimately was, and gave several other tips about how to run our system most efficiently. He was friendly and genuinely helpful. Would recommend to friends and family.