By the way, as an alternative you can get food from restaurants. (Possibly location dependent; I'm in Irving, TX, USA smack in the middle of Dallas/FW.)
I haven't been to a proper grocery store since things got real, but I've ordered meals from 3 different local restaurants and it's ready for pickup or delivery in about 10 minutes. Nothing seems to be scarce there. Tons of meat in my take-out meals! No shortage of aromatics. Same look, feel, and taste as pre-SARS-CoV2.
Sure it costs more, but in my case I'm retired anyway and have a large cash cushion. Sure I could go find more sandwich makings and cheap home groceries, but I can also order yummy food with no scarcity and not be part of the empty shelves problem and maybe do a tiny part in supporting local businesses during this time.
And it makes a refreshing break from oatmeal, ramen, and home sandwiches. Or whatever the home same ol', same ol' is.
And I can go cheap again once the empty shelves problem sorts itself out.
As far as restaurant delivery, there's the usual apps/services, but it seems like the local restaurants may be doing their own thing. Check their website/Facebook page or give them a call. Two local places were taking pick-up orders by phone, a different two also had their usual doordash/grubhub/whatnot delivery options, and one was delivering within 2 miles (shorter radius than usual) when ordering by phone.