No problem, simply plan it as if you were conducting a raid. Have a planned infil and exfil route. Have an overwatch position. Have the big guns on your vehicles lock down the high-speed avenues of approach. And have a time limit. At that point you have pretty much done everything you can at the platoon level to secure yourself. You now have some relative freedom to have a squad with the PL and interpreter walk into the market and gain some intel and build rapport with the locals. Use your interpreter while a few soldiers buy cigarettes and Pepsi. To the locals it just looks like you parked your vehicles and jumped out to talk, but you have the whole street locked down. The same actions should be taken when searching a house, stopping by the police station, or enjoying a cup of chai with the local sheik.
I have to congratulate the author on this. This is excellent abstracted tactical doctrine or "patrol based thinking." It's a raid! - or - It's an ambush! It's all very, very simple. Balance security against the activity, and match the process to the desired outcome. Good stuff!