Can a neighbor move my three garbage cans in front of my driveway so he can use the space to park his car?

To answer this question it's necessary to have facts such as local traffic legislation, administrative bylaws, and so on.

For example, if your neighbor wants to park where your three garbage cans are, it's reasonable to assume you keep them on the road; is this legal where you live? Or is it legal only on garbage pick-up days? If the latter is the case, perhaps you could both come to some arrangement on those days.

Before checking with your local administrative offices or police it would be best for you to discuss the matter in a friendly manner with your neighbor. It seems likely some arrangement might be possible which would suit both of you.

It's always good if neighborhood problems can be sorted out in an amicable and logical manner; otherwise a lot of other problems can result from what began as something very minor.