When time was up, my therapist always gave me time to gather my stuff and then he walked me out. He always walked to the elevator with me to make sure I didn't get lost (because he knew I had a lousy sense of direction). My therapist's office was in a huge pscyh hospital and it was like a labyrinth.

Actually, one of the first times I went to see him, I got off on the wrong floor and followed a maintenance guy through a door and then realized I was in the wrong place and there was no way out because the door was locked. It was a high security locked ward. I had to find a nurse and tell her where I was supposed to be and my therapist had to come and find me and take me out of the locked ward. I felt like such an idiot at first, but my T and I laughed about it.

I think that if your T usually walks you out to the receptionist's desk, he should continue doing that... or let you know that he's not going to do that anymore. I'm not surprised you were confused and feeling awkward. Maybe he was having a bad day and was just kind of spaced out and forgetful. Maybe he forgot that he usually opens the door for you. We all get forgetful like that sometimes... even therapists.