There are not rules about overtime for salaried workers. That's because salaried is not what matters. What matters is exempt or non-exempt. Not all salaried workers are exempt; not all exempt workers are salaried.
If you are salaried exempt, then it doesn't matter if you work 168 hours a week, you are not due a single penny of overtime. That's what being exempt means - you are exempt from overtime.
If you are salaried non-exempt, then you are due overtime if you work over 40 hours in a week, just like any other non-exempt employee. A very few states require overtime after 8 hours in a day, but NY is not one of the few.
Two states, neither of them NY, limit the number of hours a non-exempt employee can work in a week/pay period. A few more require one day off in every seven. NY is one of those states, but only for employees in certain industries. I am not aware of any laws specific to salaried employees limiting the number of hours that can be worked.
You have me curious about there being a law about non-exempt employees having to have a day off. I am an administrative assistant for the general contractors.