The main point is that the driver went left at some point and should have gone right. Also, can you turn around on 1 Way St.? Probably not, it's in a traffic controlled neighbourhood. Agent Rex does go on important missions, but between those, you've gotta keep yourself busy. Alternate timelines are alternate timelines! If you can improve them, do it! You'll never have that pizza, but some version of yourself will, and isn't that all that matters? Probably not. You getting pizza would be better. Why are we doing this again, Agent Pickle?