I don't think you'd be unreasonable, from someone who has been stopped twice by the police, showed them my reason for being out and was thanked for my help.
That fact hasn't stopped the abusive notes through the door, or being shouted at by my neighbours.
It all boils down to the fact they think I'm getting something they're not and are jealous of that.
I'm volunteering packing food parcels for local vulnerable people who need them. I don't drive so I can't deliver them, I go to the hub 4 days a week and collate lists and pack up the boxes.
And as I said I don't drive, public transport has been reduced and we've been asked not to use it. I have to carry what I buy, so I tend to need to go to the shop every day I volunteer. My income also has come in bits and pieces, while waiting for furlough payment, so I have to also go when I actually have some money.
If these people actually stopped and asked, I'd show them my id and explain why I'm out most days, sometimes more than once if an emergency request comes in - I'm a key holder for the hub so I need to go sometimes. But they don't. What's really fucking ironic though is that some of these people are breaking the guidelines themselves. Dogs being walked multiple times a day (as is the norm here) neighbours in and out of each others houses, kids playing in each others gardens. I'm not bothered if they want to do those things, but I think they've got some brass neck having a go at me.
In my case it's a core group of 4 houses, and because I'm an outsider to the area. It's just the latest stick to beat me with at the moment.
I let them crack on, because if I hadn't set foot over the door for weeks there'd be something in that for them to moan about. The police were reasonable when I spoke to them, I don't know if I was reported as such or if I was seen by the police and they stopped me randomly. Either way it doesn't matter.
Some people will jump on anything because they are too narrow minded to think about it, and too scared they might be wrong about what they think to actually ask and get an answer.