Eh, just walk. That shouldn't take you more than 20 minutes and riding your bike (once you figure in locking it up and stuff) won't save all that much time and will take a chunk out of that first paycheck or 2.
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Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?), 1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"