Also, does anyone know if Lot W will be open for a weekday afternoon game?
From the Nats website:
Postseason Parking Pricing:
Lot B, C, F, M, N - $45 per game Lot J, K, L - SOLD OUT
Lot U, T - $30 per game Lot W - $20 per game
I'd recommend reserving a spot online. It looks like Lot W, the one at M and 7th SE, is an option.
Just saw this too:
Nationals Park Parking Lots will open 2 ½ hours prior to game time. Fans are encouraged to purchase parking in advance online at nationals.com/postseason. Cash parking will be extremely limited.