When Michael is at the tow yard, the guy charges him for "the overnight". However, it's only been a few hours, not overnight.
The Pennsylvania State Police Officer that stops Sucre is wearing a badge on his uniform. PSP is one of the few agencies that do not wear badges.
In the closeup of the bar code tattoo one can clearly see that it is made of a halftone printing pattern. A real tattoo would not exhibit such a pattern, especially not for a bar code, which only consists of fully black and fully white "pixels".
After Sucre gets pulled over and disappears after the train rolls past they show him running in a field towards the train. Unless there were 2 active train tracks 200 yards apart he was running the wrong way. He would have been running away from the train if he ran around it. Otherwise he'd be running towards the motorcycle cop.
Michael has a gray car ready in a parking lot which he uses to fake his and his brother's death. There, he has chunks of pig meat he uses to fake B negative blood, his and Linc's blood type. But, the car has been in the parking lot where Michael had left it before he went to prison, that was at least a month before. In one month, the pig meat would have rotted in the car.