schmism said:you are not useing it commercially.
you accept a donation for the community service you perform.
In our state, if you bring groceries home for your mother in a vehicle or combo vehicle (truck& trailer) that has an actual weight of 10,001 or more pounds and your own mother gives you a cookie you are commercial. Any form of revenue or enrichment. So, mowing your field on hunting property up north increases value -> bingo you're commercial because you hauled it up there and back!
I use these extreme examples as I asked the local highway patrol these exact questions to determine the level of the insanity.
(Not that 99% of the guys / gals would enforce it for your mom giving you a cookie, but they COULD under the LAW. If that doesn't scare the snit out of you, I don't know what would!)