The reason that they have the white patches on the glass on the sea lion exhibits is because some of them are new to the exhibit and have to know where the glass is. They will eventually take them off.
That is a mystery to all of us. I usually go during the week and it’s packed. The weekend is worse. There is a parking garage next to the science museum but that’s $20 and I believe you pay for parking inside the museum. I can’t recall that part. There is some street parking and I know garage parking at the hospital across from the rear entrance