I also shopped in a Best Buy store yesterday, but I was in Woodbridge, Virginia. I was open carrying my 1911. Nobody said anything to me other than the usual pleasantries.
On a side note, the clerk who checked me out was a 20-something hispanic fellow covered in tattoos on hisarms, neck, and even his shaved head. He had a large "13" tattooed on the web of hisleft hand too. Maybe I'm jumping to conclusions here, but wouldn't Best Buy be better off if they didn't hire obvious gang members?
I also carried in the DMV yesterday for 45 minutes while I renewed my VDL and car registration. Only one comment, and that was as I was leaving: "Nice piece!"