This guy was just arrested for filming a woman in public:

https://www.fox43.com/article/news/local/lancaster-county/man-accused-of-filming-womans-lower-body-in-lancaster-restaruant/521-7a63da4c-1b84-4fd7-beea-2fbd33d93308

Obviously this is creepy, but what law did this guy break here? If you can see it in public you can film it. It doesn't say that he was taking an upskirt or anything.