is this common?

Last night I took my wife's cabrio through a car wash.  After a few minutes inside the car just died.  After several attempts I finally got it started and drove it out of the car wash only to have it die again before hitting the main road. 

I pulled it in the garage and let it idle for awhile.  It sounded really rough, but did not die again. 

I guess the question is.....could I perhaps got water into somewhere it should not have been? I drove it this morning and it behaved just fine

    No telling where, but sounds like water did get into an
  area it shouldn't have, and after it dried out, it was ok.
  Need to find where the leaks are. Don't forget to be sure
  it's not getting things wet under the hood.