Yorkies are so cute seems everyone wants to pet them. I do not let anyone pick mine up unless I know the person. I noticed you are in San Diego and we have been to that mall. It is really nice dog-friendly mall with a dog park at the end. I just wanted to let you know about the San Diego Yorkie meetup group. We have over 300 members and many of the yorkies are small like yours. It is fun to see them all dressed up and talk with other Yorkie owners. Come and join us at the next meetup which I think is going to be in Chula Vista.
http://yorkie.meetup.com/17/