> "Is the pedantic answer really uninteresting if it leads to unintuitive answers?"

Yes, because then we just get to arguing "is my car no longer a vehicle once it runs out of fuel and cannot function as a car?" then "is it no longer a vehicle if the battery is empty?" or "If the alternator is broken?" then, "does the vehicle-status depend on how quick and easy the fix is?" which are all dragging away from the question of "do people want a WWII tank in a park or not?".

And instead of asking "is a WWII tank in a park breaking the rule regardless of whether you object to the tank?" we could directly ask "do you object to the tank?".

> "By this reasoning, I counted the stroller, ice skates, and roller blades as violations yet did not count the toy cars, RC planes, nor the picnic wagon."

And now we're arguing whether RC planes count as vehicles, when people's objection might be noise in the park where RC planes with engines and drones are out, and RC electric planes/gliders are okay. Or people might think about safety - any plane near people is out, any plane away from people is okay.

> "You can't just make the law equal to some ad hoc poll of "do I want my tax dollars used to discourage this" for every possible behavior within the park"

Why not? We can poll people on every behaviour seen in the park in the last year, online, in a few minutes, and make a bylaw listing the OK vs not-OK behaviours, democratically chosen. We don't, but I don't see why you say "we can't just do that" when we could do exactly that. Why does it have to be a single rule?

> "The park is interesting because its boring. Its not a hot button issue where people have disagreements on matters of principle like guns or abortion or javascript frameworks. So why is it so hard to write an objective, enforceable rule codifying the seemingly universally agreed and understood idea of what a park is supposed to be? If we can't even get universal agreement on something non-controversial, such as the rules which make a park a park, such as "no vehicles in the park", how can we expect any system of law to work more generally?"

I'm not accepting that we can't get universal agreement on "no vehicles in the park" by nitpicking on what a vehicle is. On the ambulance it can be that some people answer "it's a vehicle so the rule is broken" because that's what the question tells them to answer even though they want ambulances allowed, other people answer "it's not a vehicle" because they want ambulances allowed and that's the only way to get them allowed, so we have a manufactured disagreement even if everyone wants them allowed. I'm conjecturing that we could get near-universal agreement on whether ambulances are okay (yes) by asking "are ambulances okay?" not "are ambulances vehicles?". Or even asking "is it okay if ambulances break the no-vehicles rule?". Maybe there's agreement on most, or all, of the questions if asked like that instead.

I also suspect bikes would be different depending if they are pedal or ebike, ridden slowly by little old ladies, or ridden by a racing peloton, or ridden as a busy through-commute every day. "bikes: yes/no?" isn't enough to classify those things differently. Bike racing: yes, no? Bike commuting: yes/no? etc.