I heard them, but it was a few minutes before I saw anything. I didn't see the barrel rolls, I just saw one of the fighters at a high altitude heading north.
Yeah, when they came overhead, the small plane was puttering along with one F-16 doing wide turns directly behind him followed by the second F-16 about a half-mile behind the first. The F-16s seemed to be almost mirroring each others moves (when one was out to the right, the other was out to the left, when one was above, the other was below, etc... When they got wide and high, they would roll it over and come down below the small plane. Like I said, it was pretty cool. Especially since I didn't get a chance to get out to the Open House at Andrews this weekend.