Depends. I wouldn't want to get slapped with a high fee if I were held up in traffic, I'd end up renting elsewhere. Also, I've heard that rental agencies often

Depends. I wouldn't want to get slapped with a high fee if I were held up in traffic, I'd end up renting elsewhere. Also, I've heard that rental agencies often lend vehicles between one another, which could further complicate the issues that make capacity unreliable.