"Disappointment"

My partner recently had some surgery which required a spinal block where they were unable to feel their legs for most part of the day. About two days later, they thought they would come home but there was a problem and had to wait for it to resolve, so I settled in for the night thinking I would pick them up the following morning, imagine my surprise when my partner rang that night to come and pick them up...really could this have not waited until the morning. When I picked them up, thinking they would bring my partner to the door,  I looked up and there they were walking down the stairs from Surgical on their own.

Now I understand they probably asked my partner do you need someone to take you down and they would have said "No" but I do not understand why there is no process in place to have said to my partner now, we have to escort you to the front of the hospital given that I was not allowed in. I said to my partner why didn't you take the lift and my partner said because they would have got lost. This is a patient who was still weak in the legs.

To make things worse, my partner was given nothing, no paperwork to advise of what to look for if things went wrong, no medications. Nothing. On the days after, my partner went to their Dr to ask what they should look for if something did not feel right. Now it looks like my partner might have a kidney infection. I am truly disappointed my partner could have fallen down the stairs and they would never have known. I feel surely this is not how they treat all discharges, or is it?