After Jesse fires six shots at Carmelo there are seven bullet holes in the wall behind him.
When Michael is talking to Fi and Maddie near the end, a woman in a blue outfit walks behind him twice. She actually walks past a third time, but this time in the other direction.
Bruce Campbell is obviously wearing lifts in several scenes. His character appears taller than Carmelo in interior shots but shorter in subsequent exterior shots.
The DL # for Jacob Starky (L252-784-65-554-1) has some flaws in it. As noted, the first letter of the DL # should be 'S' and not 'L'. The 3rd set of numbers, '65' denotes the bearer's birth year. In this case, that number SHOULD be '85' and not '65'. Interesting to note that Jacob Starky has a DUI on his record as denoted by the final number of the FL DL #. Incidentally, The DL #, L252-784-65-554-1, is the EXACT same DL # that was used in S03E05 'Signals And Codes' on Michael's fake ID.
When ambushing the drug dealers car, Michael's and Fiona's rifles are equipped with silencers. When they open up on the car, the shots fired are not silenced.
Jacob Starky's drivers license was issued the day before his tenth birthday.