This will work, as I just did it. Got 2 Vita games near my work, exchanged them and got the 3rd Vita game in B2G1 free near my home at a completely different GS.
Actually lucked out, as I got Unit 13, UMVC3, and Rayman Origins for $67.86 on a YMMV move. See, they sold me Unit 13 at the Spring...