“And he came into his house.” Since he was from Ephraim, he likely arrived at his home later that day, even if it was much later. Also, it was the custom to bury (or do something with) the dead body that same day.
“laid hold.” This same Hebrew word is translated seized in Judges 19:25 when the old man seized the woman and pushed her out the door.
“limb by limb.” An idiomatic translation. The Hebrew is more literally, “by her bones,” but it means cut her limbs into distinct parts.