I think this is a personal choice only you can decide for yourself. Will this help you get to where you want to go in the profession? How far are you willing to go?
I live in N VA. I can't take a weekday game (and my assignor knows it) more than 30 miles away becasue at that time of day it can take me well over an hr to get there (traffic, weather) and I just don't have that flexibility with my current job. Personally, I am not willing to "cut it close" or risk being late.
Now, that being said, if I had the chance to ref a former Diebler league game....... heck, all bets would be off and I might take leave from my day job!