Regarding offsite commercial storage. I have a 10x15 climate controlled storage at one of the big chains. We keep the usual crap in it but I added a bunch of food, water, etc. just as an extra supply.
Laat year before the hurricane I got an email saying they were closing and they stayed closed for a few days and the place was completely inaccessible.
For me it is still a viable option but I need to plan on the place being closed during a large scale problem. Driving across town crashing a gate and breaking into a warehouse isn’t at the top of my list of options. But if I know I’m going to need extra provisions for a storm for example, it is a good way to stay out of the grocery store. With advanced notice I can move stuff from storage to my living room.