It's a good move for them to try and immerse him in the home town sports environment. This bodes well for them. It would actually be a big stage for him to announce he was signing there (a la Clemens getting on the PA at the Yankees game.)
Of course, the backfire on Angelos would be for the Steelers to beat up on the Ravens, have the Ravens fans filter out early, and show a crowd filled with Steelers fans waving their towels. I'm sure that Teixiera hears from his father all the time about what it is like to be in the Os stadium and feel overrun by Yankee and Red Sox fans.
Ultimately, I think that DC and the Os are getting played as well. The Nats offer was legitimate, but there was no way that was going to be enough. If the Lerners don't make a subsequent offer that sweetens the pot, then this was all BS by the Lerners. Nice try for attention, but they don't get points for making an offer that was destined to be a runner up. A sweetened offer with a take it or leave it attitude is fine. But so far, they have shown nothing.
I didn't expect them to get Teixiera, but they have to come away with significant gains this offseason, or they will remain a disgraceful ownership in my eyes.