Everything was fine, but I ve been surprised that ...

Everything was fine, but I ve been surprised that both times I ve come in for an oil change and tire rotation, no one ever puts air in my tires. 3 tires are at 40 and 1 at 37. I know I have one tire with an incredibly slow leak and it was lower than the others both times and remained that way as I was driving away. That concerns me because I m wondering what else are they not checking for fluid levels? I would think the multi point inspection would include tire pressure and fluid levels???