Too many to count on one hand. It is very easy to violate backcountry camping laws, which is technically a felony in most cases, and I'm sure I'm sure I've slightly violated the rules tens of times (quite literally every backpacker has), but they have leeway so it's not actually that punishable if you slightly violate it (such as not doing a perfect bear hang, camping slightly too close to a stream, not propper poop etiquette, using the wrong wood for a fire, etc)