I was at that performance (Fri. Apr. 25), and perhaps there was a slight exaggeration. She did indeed kiss the cadet (after cooing Marilyn Monroe-ishly "Thank you so much for serving our country"). It may have been a 5-10 second kiss, and there was some cheering and applause, but I wouldn't say it stopped the show for any number of minutes.
Mary Testa also made reference after the show when she and Jackie were making an announcement about donations for Broadway Cares. She said that Cheyenne Jackson would pose for photos (for $20) and/or one could get a cast-autographed poster (for $60). She then said what if one of these cadets' commanding officer's noticed said photo/poster? "Is that a gay poster on your wall?!" "Sir, no sir!"
Coach Bob knew it all along: you've got to get obsessed and stay obsessed. You have to keep passing the open windows. (John Irving, The Hotel New Hampshire)