An idea would be -
for you to be at a budget location, and him to be at a budget location at the same time, and have the location that he's at scan his licence etc and get him added to the contract.
If the other location can't add him since they didn't initiate the contract, ask your location if they can add him since the other location has done the verification already.
I have no experience with this, but i've heard of someone doing tt\his idea in the past.
I have no idea if it worked out for them in the end, and I don't know if it was with budget.