Nothing wrong with ladybugs inside. But they are not going to do anything for mites. It’s not what they eat.
Also, when ordering any preditory bugs, you need to talk to your supplier about the environment in which your rooms stays. Someone who runs a high vpd shouldn’t use the same bugs as someone who runs 40% humidity from start to finish. Explain your temps and humidity to them. And were it’s gonna go for the next few weeks.