A good tip if you don't want hammered on weights is to clean the barrel of the rim before sending it to a tyre place
Not many bother cleaning the rim to stick the weights on, so they just hammer them on the outside
I used to fit tyres and we always understood that alloy wheels in good condition would automatically receive stick on weights.
Perhaps it was remiss of me to assume that they would have seen my super clean wheels and just stick new weights on...
It won't be happening again though