No. From the FAQ,
"Habitat: Please state the actual habitat where you photographed the spotting - this information can then be used to track changes in habitat, such as those caused by human intervention or habitat destruction. Again, it is not necessary to state published habitat information here, this can be referenced in the 'reference links' box.
Notes: Here you can tell us about your encounter with the spotting and add anything not covered in the above fields. We would also like you to state here if the spotting was made in a zoo, aviary, wildlife center, or other similar establishment. "
Saying it was in the pet store would go in the notes section. And since it was in the pet store, you should have known the ID since they have cards with the IDs of all the pets they sell.
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