Put me in the camp that if this was done safely, it was pretty cool.
The knee-jerk condemnation of it by some fellow pilots kind of surprises me.
I'm also curious about the exact charges. Some counties and municipalities may have statutes forbidding off-airport landings. Barring that, I can only imagine some general, catchall, and vague statutes like "disorderly conduct" or one regarding threats to the general welfare. Dig deep enough into a statute book and one can almost always come up with something to charge.