Is it sketchy that a hospital won't let you look at surveillance footage?

My sister was at our hospital having my niece and from the time she had dinner until the time she had breakfast the next day, not a single nurse came in to check on her. She's a single mom so after I left at dinner time, she had no one there. What if something had happened to her?

We made a formal complaint and got a letter from the administrator saying that they reviewed my sister's case and she was seen 17 times between the time her dinner tray was picked up and the time her breakfast tray was picked up. He also put in there that she had three sets of vitals done (lies) and was given pain medication twice (lies).

I called the hospital and told them that I want to see the camera footage. They told me that the camera footage is private and I told them that's very convenient and sketchy. My sister and I said that it's very easy for anyone to make up lies then without any proof. She said that she's telling him she didn't see a single nurse until after breakfast. He told us that the documentation and cameras say otherwise. I told him anyone can write on a piece of paper. It doesn't make it fact. And seeing someone go into a room and leave doesn't mean a thing IMO! They could be making TikToks in the bathroom.

The administrator told us that he's happy to have the footage reviewed and verified but we told him that's not necessary, we're getting a lawyer and we're getting that footage ourselves.

Is this not sketchy as fuck?! What are they hiding?

Edit: How could it violate HIPPA laws when we're looking at footage overnight? It's only going to be staff on there.

ALBL the purpose of this all is to prove my sister didn't get the care she deserves. They can say all they want that someone came in and did vitals or gave her pills. Fact is they didn't. Anyone can write down numbers and say they did vitals. Anyone can say they gave her pills. They didn't. She paid almost ten thousand out of pocket to have her baby when she could have stayed in a really nice hotel room for $500 and got the same experience. It's not right!

Ok but the point of this all is that this hospital is lying. They're saying they came in 17 times but my sister never saw them once? No. I don't think so. My sister says she didn't see them at all and I believe her. What if down the line something happens to another woman? What if it's been going on for years because no one is saying anything? Add to that we're being lied to when we do speak up.