It's a good idea to put one of those wee plastic chocks in to keep your pads separated if you're transporting your bike with the wheel/s off. If you don't have the ones that originally came with your brakes, you LBS should have a bunch lying around, or you can improvise with cardboard etc.
I think (but don't take my word for it, I'm an awful mechanic) you should be able to remove the pads and use a flat (pref plastic) blade to press the pistons back into their housing. Reinstall pads, and off you go. If not, you might need to pop the reservoirs open at your brake levers (make sure they're level first), then press the pistons in and top up your brake fluid if necessary before resealing the reservoirs.
Hopefully you won't need a full bleed...
I think (but don't take my word for it, I'm an awful mechanic) you should be able to remove the pads and use a flat (pref plastic) blade to press the pistons back into their housing. Reinstall pads, and off you go. If not, you might need to pop the reservoirs open at your brake levers (make sure they're level first), then press the pistons in and top up your brake fluid if necessary before resealing the reservoirs.
Hopefully you won't need a full bleed...