Its probably for the best.
If that guy got any fatter he would be a roadside hazard, a fire hazard, or a shoe in for a top sumo gig.
Getting him on a low carb diet is a priority.
Its probably the main reason they grabbed him.
The local supermarket fast food places probably tipped off the FBI.
They were worried what would happen if the restaurant chair collapsed while he was eating.
The shock wave could have maimed other patrons.