This article, and the one by the Gothamist that its based on, make the claim but don’t show their work. It’s a statement of fact without any support. Interestingly the Gothamist article was also written and posted before 2023 was over.

I actually don’t doubt that it’s true, with the NYPD being understaffed by several thousand officers nearly anything extra they do is going to require serious amounts of overtime spending.