Possibly, but nice neighborhoods in Scottsdale have objections to cops routinely patrolling their alleys at 1:00 a.m. If you could see how narrow this alley is you might have a better understanding of what I'm talking about. A squad car would have to have their lights on, could be very disturbing to neighbors. More so than a barking dog even. Well, in fact, if there were any dogs in their yards it would probably cause them to bark. And we're not talking about West Phoenix, we're talking about S. Scottsdale. Not known for gangs, drugs, meth labs, hookers, etc.
Not where cops normally do their routine patrolling.
And besides that, it would be so much quicker to just go out and get in his car and leave.