Picnic, a balmy Labor Day in the American Heartland, 7 p.m., Feb. 20-22; 2 p.m., Feb. 23. Rose State College, 6420 SE 15th St., Midwest City, 733-7673, rose.edu. THU–SUN The Drowsy Chaperone, a show within a show full of every cliché, gag and gimmick from musicals of the golden era, 8 p.m., Feb. 20-22; 3 […]