I've never been given a notice. In fact twice the owner has met me at my truck AFTER I unloaded the survey equipment and was getting in to drive home.
OTOH I've never not given sufficient notice on my end. And as much as when I leave my current job, sooner is better than later..., I will very likely give them quite a bit of heads up. The azzholes that run it can answer to a higher being later on....