Hmm depends whether or not he was lamping the fox, if using moonlight alone its plausible, and bear in mind it was his land, no public access/right of way and no way he could reasonably expect anyone to be there at that time of night.
However the reality is he shot at intruders attempting to raid his/his tenants crop of weed.
The police revoked his licenses as it was the only way they could get any sort of result from the case.
On the upside he should be able to get the confiscated guns transferred to a local RFD and then sell them, the same with the ammunition.