Hey, you have to take what you can get in Dallas traffic. The crazy drivers around here is one of the main reasons I don't do much driving anymore.
As far as waving goes, not necessarily. I never got any waves back, so I usually don't bother. Went for a drive today and the only convertibles I saw with the tops up were BMW's, lol. Spotted a red NB headed east on Campbell Rd in Richardson, and a yellow one headed northbound on the Trollway. Both looked, but never waved.