Yes, because if there is one thing grocery companies are concerned with, its making the shopping experience as quick and efficient as possible. They are the same companies that go out of their way to put common items far apart so you have to travel farther. They want you to buy more than you need, and to make impulse purchase, desirable behaviours your system does not encourage. Your trying to remove the human element when that's exactly what these companies depend upon.
Our economic system values consumption, not efficiency.
As opposed to the fridge taking pictures itself
Automating something that takes mere seconds has no benefit IMO. Especially when it involves integrating, setting up, tinkering to get it working with your Wi-Fi configuration etc.
drone/automated car
Home delivery is already a thing. Use that. I don't see how removing the driver makes anything easier for you. The argument in favour of automated delivery is usually an economic one, but you have already stated you would be willing to pay a premium.
that arranges the groceries inside your fridge
You put the groceries inside your fridge. This is not hard nor time consuming. There are many things that could be automated to great effect - this is not one of them.
not only that it will be simpler for us Human
These systems need to be manufactured, are going to crash, misinterpret what you want, require maintenance, setup, upgrades etc. Overall I don't imagine that that would take a whole lot of time or effort, but when you are replacing something that also already doesn't take a whole lot of time or effort with this, it just doesn't seem to have much net benefit. It just seems like your replacing one slight pain in the ass with another.
I don't think automated cooking is a bad idea. Out of the activities you mentioned, it is probably the most time consuming, and is certainly a more substantial thing to automate than
merely looking up recipes. I imagine it would take another form though, perhaps some high-quality instant meal you could just microwave/dehydrate or something.
I think automated cars have a place, especially when e.g. it comes to commuting to and from work. This could free up a decent chunk of time for some people. Delivery vehicles tend to visit multiple places with one driver, so I don't see automated delivery vehicles being much more efficient than what we have in that context.