Scooter Motorcycles

Hello I own a bicycle shop and often I have to make several 5 mile trips a day to a supply warehouse for small parts and Accessories. It’s a waste of space and time to drive my very fuel efficient pick up truck three times a day for these minute pickups. I have been doing this using my messenger bicycle but in the summer season I just don’t have the time.
Can I drive a scooter on the free way? Do these vehicles have enough horse power? Im looking for low maintenance and reliability price is not so much a factor as the vehicle will pay for is self shortly.Thanks in advice to the answering community you have been a great source of Ideas and guidance.

I would recommend getting the Kawasaki Ninja 250R. They’re not much more then a scooter (about 3,000 dollars) but will pay for itself in no time. It averages over 60 miles per gallon and looks pretty sweet. It also has plenty horsepower reaching 60 Miles Per Hour in under 6 seconds.