Maybe not ladybugs, but suspect they are the Asian beetles.
For the second year now, I have been spraying (I use ORTHO Home Defense) and either it works (there are a lot of dead ones) or there are fewer of them that want to enter the house. Two years ago they were everywhere in the house, and I cleaned them up all winter long (thinking they were in my wood pile that was under cover, and I brought them in that way). This reminds me that I will go out now and spray the woodpile down to cut the population down a bit, that is if the spray works. As I understand the spray, when they walk on it, they die. And it says it lasts for three months.
It does a number on spiders, Daddy long legs, and crickets as well.