Was going to do a CU of the dog too...left it simple. More CU's/camera work worth trying for future skits (especially when not using a green screen- else a lot more work to look good).
A few deeper subtleties in this bit, especially for those with experience with service animals, establishments, and the law (can only ask certain questions, can't ask for proof). The 'Barbie girl' character wouldn't blush- she has no shame!