bokaba – The “agreement” that you refer to was a USPS 1583 form. A UPS Store is a CMRA (Commercial Mail Receiving Agency). Any CMRA must have a box holder’s current 1583 form on file. Individuals with uncollected judgments may find it useful to be familiar with the form and related Postal Code of Federal Regulations:
http://www.virtualpostmail.com/downloads/ps1583.pdf
Other than for that reason, I think you’ll find the form is of limited relevancy in a Small Claims forum. A minority of states permit substituted SC service, and I don’t know any that offers pre-filing SDTs (subpoena duces tecum- subpoena for documents). Unless a CMRA will just give you the data, that’s what you’d need to verify the residence service address. (I agree with FlyingRon and respectfully disagree with your interpretation of FSCP 48.31(6)).
But even if service can be obtained, the OP hasn’t begun to address the difficult and expensive issues of litigating cross-country and enforcing a potential judgment in at least two states. CA’s long-arm statue (CCP §410.10) appears inapplicable, so is she litigating in NV, FL or, as suggested by Dave1952, in HI? Is she enforcing in FL or domesticating in HI (where there’s real property) or trying in both states?
The OP’s claim of $1,200.00 (plus punitive damages if applicable) is not inconsequential but, as is common in Small Claims, the remedy is likely to be more costly than the right.