Like other people mentioned, there won’t be enough braking force to heat up the pads enough.
Just ride around your neighborhood!! If anyone asks, you’re not a miscreant, you live right over there. 
Bedding in brakes actually means transferring material from the brake pad onto the surface of the rotor. Rotors themselves are pretty slippery metal, so the brake material left over is what slows you down. To successfully transfer the pad material, you have to heat up both the pad and rotor to ensure the transfer process works.
Lastly, you could just not bed them in until you’re ready to ride outside, then add the bed-in process to the beginning of your next ride.