Can I get a micro sim card cut to nano sim at Walmart or Best Buy?

I just got an AT&T iPhone 5 and I'm switching over to Straight Talk next weekend. I'm wondering if Walmart, Best Buy, or AT&T will cut the micro sim card from straight talk for me for a small fee and I'm wondering do I need to buy a iPhone eject pin or can they open the Sim tray?

They will not cut your sim card. You open the tray with a bent paperclip.

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