I am planning a trip to San Francisco and have been looking for a good deal on a rental car.
I just came across the Southwest Rapid Rewards Alamo car rental offer which seems to have the best rate I can find on the size car I am looking for.
Also states 3 x the usual 600 points (1800).
What I am confused on and can't seem to find in the fine print is
does the actual rental need to take place before April 30, or has to be booked by April 30th?

"Limited time offer! Earn 1,800 Rapid RewardsŪ Points, 3X the standard 600, and save on rentals with Alamo. Offer valid on any rental of 3 or more days through April 30, 2016."