Loud Music and Arguable Probable Cause

What's it take to get arrested these days?

We conclude Brown’s actions in playing loud music, stopping her car, and rolling her window down could have indicated to an objectively reasonable officer at the scene that Brown was making unreasonable noise with intent to create public annoyance, even if those circumstances were insufficient to prove an actual violation of § 13A-11-7.
Details at Fourth Amendment Blog.

Honestly, every day I wonder: "Why bother?"  Those are the types of cases coming out of the federal courts each day.  More and more talented lawyers are fleeing Section 1983 law.  Would any of you "old timers" advise a young lawyer to consider devoting even a minority of his practice to constitutional tort litigation?