The feat Law Devotion (Complete Champion 61) has the following as part of its benefit:
Once per day as a swift action, you can summon the power of law to aid you. Upon activating this ability, you immediately gain a +3 sacred (if your deity is good or neutral) or profane (if your deity is evil) bonus on your attack rolls or to your AC until your next action. At the beginning of your next action, you can reallocate the bonus if desired. This effect lasts for 1 minute.
Also, the feat's Special says, "If you have the ability to turn or rebuke undead, you gain one additional daily use of this feat for each three daily turn or rebuke uses you expend."
Can a creature, on one round, take a swift action to activate the benefit of the feat Law Devotion to gain the bonus to AC then, on the next round, take a swift action to spend 3 turn undead attempts and activate the benefit of the feat Law Devotion again to gain the bonus on attack rolls while keeping the bonus to AC? Or does this run afoul the Combining Magical Effects rules (PH 171-2) or some other rule?
Addressing similar situations with regards to the feat Animal Devotion (CC 54-5) and—let's imagine the cleric's feeling lucky—the feat Chaos Devotion (CC 56-7) would also be appreciated.