AIO about how this customer talked to me after a 40 minute wait?

i run a truck by myself on weekends. saturday i had a line 20 deep and my second burner went out, so everything was slow. this guy ordered, waited, and then found me on instagram that night. the messages are below. i refunded him already, that's not the question. the question is whether i'm wrong for how much this got to me.
What People Are Saying
"these little truck operations" told on him harder than anything else in there.
you refunded him inside one message and he still needed the last word. it was never about tacos.
yeah the refund was easy. it's the smiling line that stuck. i was smiling because i was about to cry in a parking lot.
reading that back to yourself forty times is the real cost of it and he'll never know that part happened
block him. not as a punishment, as a maintenance task.
@biglou_eats_champ+61
41 minutes for two tacos from a solo operator with a dead burner is a saturday. that's not a scandal, that's a saturday.