This has to be so difficult to watch and hear. Definite animal abuse. I hope you are able to help this woman understand but think she doesn't give a damn. It is only a dog and don't be surprised if those words emit from her mouth which you would probably like to punch.
You can't take it because guess who would have you arrested? Hope the manager has some input and SPCA should be next!
Good luck and saddens me to think of animals not treated well.
PS A plastic crate has air holes and that pup must have been so wet. Ugh!