Minor bug report: Inflated can walk through the soda machine on the bank map (I don't know about the Bus Stop map).
On the Bus Stop map it should be very rare that to happen.
The soda machine is in a corner of the map next to a wall, that's rare that one gets close.
Note: I test it and yes, the Soda Machine don't have collisions for the enemies
Anyway, if you get to a moment for see one enemy passing through that point, is more possible that you will be surrounded in all direction.