*** Know where they are
Obviously can;t help you here.
*** Avoid the police.
Always do a driveby first looking at your surroundings for hidden/parked vehicles. Pickup on next run if no one is behind you or in a position to see you.
Inside you have to pass the touch test. They will ask you to touch them, grab their crotch then they will ask if they can touch you... and they will grab your crotch. Test is standard... if its not heppening... let her out and get out of the area.
*** Be safe
BJs are safe. Believe me after 14 yrs I know. No need to wrap. Any anal/vagina penetration though definately wrap !
*** Be safer
Never leave your car. If you leave the car you are going to get jumped by a pimp who will take all your money/wallet. Maybe you'll get lucky... but sooner or later you'll pay a price. STAY in your car.
*** Dont get taken
If they ask to stop at a store for condoms, or just a sec to use payphone etc.... its BS. They are about to jump out with your money and run. Tell them you will hold the money till they are done. If that dont work then tell them you want nothing... get your money back and get her out of the car. Probably a 'pimp'/mugger nearby waiting anyhow.
Also.... never carry more than you intend to spend on 1 girl. Hide the rest under mats, ashtray, whereever. If its in your pocket.... you'll be surprised how easily they lift it !