Wow this Friday.... thats quick.... I assume you are very familiar with Birmingham airport but just in case.. Steve is right the pick up parking area is limited to 15 minutes at £1 then shoots up to £5 for one minute over, so best to use carpark 1 short stay, but even then if you can check up to date arrival times on your blackberry then do not drive on the airport grounds until just about arrival time.. oh and if it happens to be raining take a brolly as unlike most airports short stay one is not connected by a walk way and is good 300 yards to arrivals.
I bet you are still on cloud nine right now...