Adult plants can take really low bursts of temps. Its anything below 6 nodes that the cold effects the most. Veg. Flower is different.
They'll be fine. It might have helped them. Look for colors on the bud.
Thanks for the responses guys! I got a little sketched out some of the leaves were standing straight up, and a couple leaves were twisted a bit. I put a space heater in there and got it up to 83 and everything is already looking better after 20 mins.This plant was grown in an out building without heat with night time temps in the low 40s the entire grow and daytime temps hardly reaching over 60. This plant can handle a lot