<human>: I was going to Sonic drive-in for the first time EVER with my girlfriend. I was a bit intimidated by the whole drive-in thing but I was feeling good and we ordered a ton of food. The car hop brought out our food and I paid her, and them gave her a tip because I felt like it was a service deserving of a tip. Do you tip at a fast-food drive-in? Apparently not, cause she laughed at me for doing so! I don't know if she was offended, amused, or what, but it embarrassed me a lot more than I usually would be. I felt like a total dork and to this day I get all embarrassed just thinking about it. Needless to say I won't do it again.

Can you summarize the given text in a few sentences?
<bot>: I innocently tipped Sonic car hop first time I ever went there and she laughed at me as if I were an idiot.