I put some mealworms in a container poked some holes shove them in the bar fridge (not literally shove lol) and I pull them out to see how there doing none r moving so I shake the thingy and there hard as a rock and I left them out for 15 minutes in room temp is the fridge to cold and if I put them back in and pull them out in like 7 hours will I have to let them thaw again or will they be dead?

Hello,
The temperatures in the fridge slows down their metabolism and therefor slows them down. If the fridge is too cool, yes, it can kill them. most refrigerators however are not that cool.
A bar fridge is normally set at cooler temperatures however. This is to keep the alcohol cooler.
When you took them out, did they thaw and then become active again? This is the normal routine for mealworms that are in the fridge. They must be allowed some time to thaw and become active. Then they need to be allowed some time to eat, and then they can be fed to the reptile.

yay there moving around a little bit so I will ask my mom to set the bar fridge a little warmer