Call the terminal he's driving out of and speak with the dispatcher.
Each driver has a"territory". Also, most try to be in certain areas at certain times. This is by no means a guarantee. Especially near Christmas, but sometimes you can locate them by driving around looking for them if it is necessary.
Call the dispatcher. UPS should be able to help you with that.
Only dispatch is able to do so. Usually most local deliveries are sub-contractor out and ups has to get ahold of the manager of that particular driver in order to get any information
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