That much of anything on the ground is not good. Unless you are going to DIY just have it towed to a well recommended independent shop that specializes in BMWs for an estimate. Don't start it for any reason.

Pictures can be misleading but it appears there is coolant in the oil. Mayo tends to be more solidified in nature. While PCV as the cause is a good guess, there are several other possibilities. The good thing is that you shut it off right away.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas