Food and drink is on par with any other small town USA Sonic drive in and I have been to many different locations in many cities across the USA. I can say that I have yet to find a Sonic location that allows their car hops to carry the necessary condiments. I mean if you order a corn dog and fries any normal restaurant will automatically give you Mustard and Ketchup, Not Sonic! You have to ask the car hop to return with what you need, but I have also noticed that about 80% of the time they never return.
A second problem that I have noticed less frequently is the inability to count change, more often than not, I get shorted my coins or I have an extra dollar given back to me. So, I make sure that I carry the correct change and I refuse to pay until the Ketchup is in the bag (after today).