Am I an inadvertent asshole?

I ordered from a fast food chain, the uber eats app said it’s 6miles from me. I put in a small order with no drinks and tipped $11. It was picked up by a driver right away.

But I just checked on google maps and maps says it’s 14 miles one way!!!! Like…is $11 reasonable for a half hour drive? I know no one has to accept the order and mine got picked up almost instantly! Should I tip more anyway? Why did UE say it was 6 miles, I was iffy about that distance, let alone 14😭