We were at the "You Can Find This" cache (GC185HW)earlier today but unfortunately we did not see The Doberman Pinscher inside it. We dropped off one of our own Christmas Travel Bugs in this cache to let it begin the journey to Paris.
You may want to back track through some of the previous logs for "You Can Find This" to ask if anyone has him. We live nearby and are in this park often. Being that you are in CA, we can try to check on him if you locate him and need someone to check on his condition or pull him from circulation.