Are you expecting manna perhaps?
Otherwise, God has given you the means to procure it. If you don't then you can't blame Him.
Panic buying, to me, implies a lack of faith that God will provide what we need. I am not going to sit on the steps waiting for a Big Mac to fall out of the sky and hit me on the head, nor am I going to allow fear to overwhelm me to where I am going to leave work and buy a truck load of food.
I am simply stating that I am not filled with fear because God has proven to me that he will make a way for me satisfy the needs that I have, food or otherwise.
I take offense that you presumed me to be a religious wacko. When our fears motivate us to do crazy things for no good reason, maybe, just maybe, it is time to take a pause and take a good, hard introspective look at ourselves. I have. Maybe you should, too.