<*eyes fic*> mmm and how many traffic laws would he have to violate to do that??
(Hint: unless it's off-peak AND you're speeding, you probably can't make it from the VA side of DC to [unspecified location] in Baltimore in an hour-ish. Yes, it's physically circa 80 miles. The traffic hellhole that is DC is *absolutely awful*, 0/10, avoid whenever possible. Do the loop around Atlanta, preferably; or go drive around Ohio. I hate both of those so you know. My feelings about DC traffic are Enormous.)
No one understanding geography or traffic patterns of major metropolitan centers outside of the Maybe one they're familiar with will kill your setting realism. Also, don't trust google maps for static traffic data; it'll be wrong/outdated again within 2 minutes, nevermind at whatever remove you're using it on timeline wise. #fictweeting