I used to tip the carhops at Sonic a flat $1.00, not a percentage as I do for table service. Now I have quit going to Sonic at all, after they screwed up my order one too many times.
I live near a sonic, but I don’t see the appeal. I expected chicks on roller skates. But its more like an old drive in theatre with no movie playing. You cant sit inside, there is no inside.
I wish In-N-Out would expand to my area, but I haven’t seen them since leaving CA.