It's going to cost you more in gas than what you'll make, but it is a great resume builder.
I don't know what shift you are doing, but let me give you the benefit of 50 years of driving down route 3 on the weekends... ok 34 years of driving, 16 years of being a passenger.
Saturdays... weekly rentals flip on Saturday morning, out by 10, check in at noon. That means Route 3 is a mess by 10 headed south. If you need to go south, be well past Braintree by 9:30.
Sunday is iffy depending on the weather...on a crappy day people bail from the cape by noon, nice day they bail around 4. Northbound Rt 3 is bumper to bumper till exit 15. Heading down to the cape on a sunday morning is the same as a Saturday... if you are not on Rt 3 by 9:30 be prepared to sit, especially from the Norwell lane drop south.
When you go by Exit 12 wave at the WATD studios.
Find a friend with a pilots license and have them fly you into Barnstable airport.