I will admit that I have never done this. However, a mom in my homeschool group says she does this routinely so she doesn't have to pack up her 4 small children just to go to the store for more milk. She also says she uses about 4 gallons of week, so that's a lot of going to the store.
According to her, she buys a lot of it from Sam's when she goes because it's cheaper there than anywhere else and she just pops it into the freezer, she doesn't take the top off or pour any out at all and had never had an explosion issue. I am going to try this, and I'll let you know.
She also says she just takes a gallon out at night and by morning it's almost completely thawed and she just puts it in the fridge to finish.