I'm able to get in, but eventually they start shooting the first officers I transform. Also how do you transform the Radio station? They always kill themselves first.Yes. You need the different upgrades and use them when prompted to enter the premise and take over.
I havent played in a while but the oil from the garage made you able to squeeze through small gaps, the formula from the barber would upgrade your pheromones. There are more upgrades but I dont remember them.