yes, it was quick release. my bike is at wheelworks now having a non quick release seat installed. the bike guy said even if i bring my seat inside with me, that can pose a threat to the bike if it rains b/c it will get tons of water inside it.

wheelworks also told me to NEVER EVER park at the bike racks behind Davis Square. they said it's much better to park in front of a store b/c thieves won't know if you'll be coming out at any second. whereas with a rack by the T, they assume you're gone for the day.