Not a big deal but a first for me- I went to my seat in first class row 5 right at the end. Had arrived late at the gate so except for one seat across from me, the rest of the section was boarded and sat. I go to put my backpack in the overhead bin, like I always do, and the FA told me I had to put it at my feet underneath me. The passenger across from me comes a few minutes later with her husband who is not sitting in FC. She puts her luggage in the bin across from me over her seat and he uses the still open bin above me and departs to the back. It’s not a big deal, but is kinda BS that I’m not allowed to use the FC bin. Is this standard policy?