You don't need to clay your car just for the bee droppings. Remove carefully with fingernail and wash. My philosophy is to try and touch your paint as little as possible. Over waxing and claying belive it or not will start to take a toll on your paint and leave swirls. I have this yellow dots all over my car right after I wash it.
When I had my Yellow 997S, bees thought the car was just a big flower. Everytime I pulled up to a light I would get a swarm of bees around the car and the accompanied mustard yellow bee droppings.
2013 M3 Coupe-MR/BLK ZCP, identical to my 2011.
2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk