During the mission, there are a couple of opportunities for C.J. to leave the Jefferson Motel and explore San Andreas without a wanted level.
Sweet wants his Grove Street gang to meet with the other GSF leaders at the Jefferson Motel. Have C.J. drive them there. On the way, Ryder picks on C.J. again, and Big Smoke tells him to "cool it." Ryder says he's as "cool as a Shaolin monk." Shaolin temples are an order of Chinese Buddhist monasteries famed for association with Japanese Buddhism and martial arts. Once there, Sweet goes inside alone--one representative per family can attend. The LSPD moves in with police cars and S.W.A.T. agents rappelling from helicopters, and get into a shoot out with the gang members. Big Smoke and Ryder leave while C.J. stays to help Sweet.
C.J. is given a Shotgun by the game, but for better have him switch to something powerful with a steady burst, like an M4 or SMG, or switch to Molotovs, which are good for getting around corners. Have C.J. shoot the attacking S.W.A.T. agents on his way up through the motel to Sweet. The S.W.A.T. agents may appear on upper balconies, come through a skylight, bound out of rooms up ahead, etc. When C.J. gets to the sign on the wall that says the next hall has "Rooms 5-8," have C.J. go down that hall, around the corner, down the hall to the 2nd room on the right, and into the room, where Sweet is waiting.