Controlling grandparents

So my mom calls me asking about a pack n play for Wed. I'm like why do you need it Wed? She says because I'm off work and I'm going to watch the baby. By the way im on vacation in two weeks so let his babysitter know bc I'm gonna watch him. WTF!? Like was she planning on letting me in on the fact that I'm driving out of my way to drop my kid off to her. Then she has the audacity to criticize me for not letting my child sit in his carseat all the time. 1st off thats not healthy for any kid but especially him bc he has a medical condition then tried to tell me a bouncy seat was different. Umm no hes still putting constant pressure on his head in a bouncy seat which he isn't suppose to do! I really don't want to let her watch him since she just told me this was happening instead of asking if it was ok and is constantly criticizing my parenting bc i do things like hold my child in my lap while I eat. My MIL is the same way and no matter how much we tell them they cant seem to understand why we don't like letting them watch him. I'm ready to just move states to stop hearing how bad of parents we are for loving on our child, and interacting with him as much as possible.