Are you supposed to tip at sonic?

I've never seen anyone tip

You don't have to but they're allowed to have tips. They're only making minimum wage.

my fiance has the few times we went.

I always give like $2 if I have it on me.

Yes!! I used to work there, and the carhops DO NOT make minimum wage. They make roughly $5 an hour and count on tips.

Sonic car hops in my town make minimum wage and tips. I tip based upon service provided by the car hops.

I don't a lot but I think you're supposed to.. i know my SO usually does