That sounds like every night on my unit. 28 beds half labor and half pp. running to OR, not eating lunch, barely peeing..... I wouldn't ever dream of doing anything else though.
I work LDRP and if a patient already has pit hanging then we just bolus in the remainder of the bag ( 30 units in 500ml ). If she did not have pit hanging already we either give 10 units IM or bolus the 30 units depending on physician preference. We have had patients refuse the pitocin and the physicians rarely have a problem with that as long as they know the risks and that if heavy bleeding occurs they will get pitocin.
We change into hospital supplied scrubs when we come in so it's never an issue. According to OR standards you have to be in hospital laundered attire to go into the OR. We used to wear our own scrubs I'm glad we changed I hated going home to my kids feeling like I had body fluids all over my clothes.