I'm going to take a crack at this thread and offer my OPINION, on the subject.
It may be that there are no laws against prostitution in Tijuana, and I know it's almost impossible to cite any in their legal and civil codes. However, we still hear many people in publications such as the NY Times, and numerous sex websites that there are indeed laws against prostitution still on the books today, and the 'zona norte' the red light district' is really the zone of TOLERANCE and the only place in Tijuana, that will allow prostitution as long as you confine it to a few square blocks. { in other words you can fuck a Mexican hooker all you want in the zona, and as long as you do it in a hotel, you won't get in trouble with the law)
Here is what I would do regarding escorts. If I wanted an escort with the promised GFE service. I'd still continue to see escorts, but I would do it very discreetly, and I would have the agency have to escort meet me somewhere the agency doesn't send all the other escort too like Mc Donalds. We already know if the TJ police catch the escort she will get busted for something like a 'health code violation' and taken to jail. And you can bet your bottom dollar if she is busted the TJ cops will fuck with you too, despite what laws are on the books!! There are plenty of related laws the TJ cops could use on you to extract a bribe payment from you, especially if you have been drinking, as you can be fined just for having a liquor on your breath according to the Tijuana legal guide.
In fact in the TIjuana legal guide
http://www.tijuana.gob.mx/Turismo/TouristGuide/English/pag6.asp it lists 'activies related to drugs or prostitution' as one of top infractions that gringos from the United States are cited for. So this tells me the TJ cops can use plenty of leeway in fucking with a client if they wanted. A good example is in the states, years ago I use to do lots of streets Hoes, which I rarely ever do any more. But a few times cops have stopped me with a ho, and I wasn't doing anything with her, as it was either before or after the session, and boy did those cops come down hard of me, threatening to lock me up for a few hours, to calling my job or even my home to find out if I was married. Each time those cops had me singing like a bird what I was really up too, and really at the time I wasn't breaking any laws, but they had me scared and I promised never to go down there again, and I didn't for a few months anyway. The point I'm trying to make is the TJ cops can lean very hard on you if they want, so you'll have to be very careful looking for sex outside the zona.
I could just picture a manager at for example Mc Donalds, as been noticing lots perverted looking old men sitting in the place alone not buying any food, and also noticing very young girls coming in the place not buying food and taking the perverted looking men by the hand out of the place, while all the other customers stare. Maybe one day she decides to call the police, because she had it with 5 escort agencies using Mc Donalds as a meeting place and not buying any food, as it's causing a disturbance to the business. Does anybody think the TJ cops will come in there and just arrest the escort, and leave the monger there in peace because there are no laws on the books for what the monger is doing? { I think the monger will be going for a ride in the back on the patrol car, on a trumped up charge of a prostitution related crime, or a simple disturbing the piece, and will only be let out when he offers to pay a bribe of as least $100 dollars, as the TJ cops has already checked his wallet, and knows he has lots of cash there)
So if I'm going to do a escort, I'm calling a agency that's well known, that gives good service, and one that's willing to have the escort meet me where I want, or a public place where we won't get noticed. In fact the first escort I ever did, I had her meet me at the Beverly Hills clubs, I even wrote a trip report about it a few years ago.