I have seen many that doing half-assed would be an improvement.I get what you're saying and realize there are many these days who would do exactly that and do it anyway even if they aren't resigning, but it isn't in my nature. If I'm going to do something I always do it to the best of my ability.
Had a co-worker that signed up for direct deposit, when it first became available. He made a comment that the company could not terminate without notice and had to pay until notified. He disappeared, traveling the US for 6 months. A manager happened to be on vacation and stumbled upon him. Told him he was fired and called it in.
They changed policy to 48 hrs no call no show, no job.