Because he had to clean himself up before setting the wheels in motion, so needed the excuse of flicking through the Yellow Pages for a Police Station number.
That does not make any sense ? The time wasting from what point ?
So you give me a time line from him making the call to his answering machine and then again try and explain to me again ?
As far as the police were aware he had been in bed and then received a call ? So what excuse does he need ?
According to your scenario he could have spent a long time destroying everything and cleaning up why was the time of the call and the apparent time wasting important to his alibi ? I repeat just wait the alleged 26 mins and call 999 .,Especially as everyone thinks he wanted to manipulate a siege situation so the police would not enter .