The National Parks Service and the United States Forest Service are two separate organizations, so that must be noted first. Also, not everyone in uniform is an "officer". A park ranger or wilderness ranger has a qualification (3 days of training) as a Forest Protection Officer (FPO). This sounds great, but they not law enforcement. Think of them more like information givers/educators and sometimes a security guard who can issue very small citations. If it was a true Federal LEO working for the NPS that told you "tough shit", that is sad and embarrassing for them, but not common place.
The fact that no one responded over the couple of days you camped isn't surprising either. Was the Park LEO even available to respond to this? Leaving a message and email is good and all you could do, but we have no idea how many messages and emails where having to be handled in front of yours. Again, it normally goes to lack of staffing. The visitors simply overwhelm the system in it's current (pathetically staffed) form.
Rules and laws on public land are like many others in life. For the most part, it's on each individual to be a good human and follow these rules and laws. To be honest, most folks do and if they make an honest mistake, they are quick to correct it once they are educated about the issue. The few jerks that break rules and laws, do so in many aspects of their life. The hope is that there is a real LEO available to handle it. It's kind of like the idiot drivers who are driving reckless as hell, speeding and disobeying traffic laws. How often do we wish a cop was around to nail them, yet it's rare. These type of things frustrate those of us who do our very best to follow all rules and laws while on public land. This makes some feel like these rules and laws don't matter, because we don't see the citations or contacts made by law enforcement. They do matter and luckily most folks are good people.
I know the difference, my dad was a ranger for the USFS, as you said not law enforcement. These were NPS LEOs they carried sidearms/tasers/radios, this was at the access gate of a National Park, it was not national forest. It was sad and embarrassing.
I still have the pics and email saved, it was sent on a Monday, during business hours. Sat October 12, 2019 I sent a text via inreach (saved to the email of the head ranger), then climbed up on the ridge where I had service and sent photos and another email.
No response was ever given.
I pack out on Monday October 14, 2019, at approximated 11:15am and reached the gate, called the office and left 2 voice mails one at the backcountry office, another with the head ranger ( I can provide you with his name, number, and email but won't blast him on the open forum).
not exactly peak season slammed with visitors.
At the parking lot/ trailhead on October 14, 2019 at around 11:15am, I encountered said LEOs and told them of the circumstances and showed them pictures. They said they couldn't do anything and left.
You have to check in, in person for this location and get a permit during park business hours (Friday). I called on Tuesday once I was back at home and the agent at the desk said I had the only permit for the past 4 days.
Point being, this is in the boundary of a heavily used national park, with road access and law enforcement on hand that were provided numerous notifications and evidence. They did crap, good luck on USFS or BLM with people violating rules.
-Colorado