Renters’ Rights in WA

Hello, I hope you all have been enjoying spring! I have a question about tenants’ rights in Washington, and Google was not entirely helpful, so I was hoping if someone could help explain to me if my property manager overstepped a line during inspection, as my partner and I came here from a state that didn’t really do this kind of thing. During the inspection, the property manager made a point of opening all our cupboards and looking in our closets. I totally get needing to check the smoke alarms and look under sinks and stuff, but this seemed like a level of invasive that bordered on violating our privacy (like, I have a bunch of intimates in my closet that I did not know that he and the maintenance guy would be looking at and I feel uncomfortable). Is this normal???