My scenario here involves interruptions to infrastructure rather than any primary threat of violence. Maybe it'll happen in the cities, but not here. Some of the following stuff is SOP at this time of year anyway.
1) Fuel shortages\no fuel at all
Fill diesel tank for central heating ( we don't use it except for heating water, it can do double duty for fuel for the truck )
Get dirt bike out of summer storage, check it over, fill tank and spare fuel cans. Maybe do quick build up of second dirt bike, currently dismantled for complete rebuild. If so will need 2 stroke oil for this one as well as fuel
Enough wood already to last for the winter. Probably. No problem to get more
Get spare propane tank for stove
2) No electricity
Make solar oven. Range is gas but oven is electric
Buy paraffin lanterns, more candles and candle lanterns
Can't heat water easily without electricity. Make solar heater
Batteries, must get batteries
3) Food shortages
Lay in stock of dried beans, pasta, cans, the usual stuff
Get air rifle fixed ( already underway ) for hunting rabbits, buy air rifle ammo ( current stock 1000 pellets, but good to have more, is very high powered spring rifle and needs constant practice with to maintain user accuracy )
4) Water shortages
Not sure about this one. Our water comes off the mountain but there is another stage ( pump I assume ) involved getting it to local homes and farms up here because sometimes it fails. Can ferry water from town, maybe when\if things go hot we'll fill the swimming pool to provide water for washing clothes and flushing toilet. Would be good to have drinking water stash
Scout location of storage tank for mountain water, may be possible to retrieve it from there directly if it has inspection hatch. Take bolt croppers, fit own padlock ?
Miscellaneous
Learn how to spell meiscellanous

Go pick up cowboy guns from friend\acquaintance over on the coast. Get\make ammo
Check medical supplies. Have my own survival med kit and two unopened first aid kits at least
Seeing as I am at risk from serious bleeding while on blood meds, get Quik Clot in case of serious cut ?
What have I forgotten\ not even thought about ?