It apparently still happens.
Lin, whose Raptors are playing the Bucks in the Eastern Conference finals, via Bill Michaels Sports Talk Network:
After Game 2 in Milwaukee, I was trying to get to the team bus and one of the dudes in the Milwaukee arena just screams at me. He’s like, “Where do you think you’re going?!” And I’m like, “Uh, I’m trying to get to the team bus.” He’s like, “What?! Where’s your pass?” I was like, “I don’t have a pass. I don’t know what you’re talking about. I don’t have a pass.”
This happens in a lot of arenas, so I just kind of go with the flow.
It’s a fine line. Lin shouldn’t be profiled as a non-athlete because he’s Asian-American. Arena staffers should keep everyone safe by stopping unauthorized people.