Lady bugs are a good thing to have in your grow room. They eat bugs that eat your plants.Put a piece of real sticky tape down there somewhere with the sticky side up.
I looked in my cab the other day and saw a full grown ladybug. I have never had a single bug before this. I decided to just leave her alone. Not sure how she got in there or where she came from since it's been below freezing for a couple weeks now outside.