I didn't know about the Crips in Oakland starting this dance - but I did figure if people were offended it could be because it was dancing at Wimbledon. I follow tennis, but I do it by reading tennis web blogs (often at the Guardian) and I don't actually see the matches and the after match moves. Wimbledon used to be hella-strict and I don't know if that has changed much and if so in what ways.
That's a little fib in that sometimes I see a bit of videos, but I haven't got a clear comprehension of what the venues are when players flop down on the court or otherwise act out. Tennis outfits have changed - and I think even at the Wimbledon yearly tournament - but I'm not sure. I think that generally things are less formal than in, say, the 1930's.