It's a crime to threaten people. It's a crime to lie to the police. It's a crime to impersonate law enforcement and doctors.
The First Amendment may give you the ability to say anything, but when what you say furthers a crime, then you should be arrested.
The crime here isn't for saying he's a soldier who was given the medal of honor. It's for pretending to be one. What he said is just the evidence of the crime.
If we were as industrious to become good as to make ourselves great, we should become really great by being good, and the number of valuable men would be much increased; but it is a grand mistake to think of being great without goodness; and i pronounce it as certain that there was never yet a truly great man that was not at the same time truly virtuous." - Ben Franklin
Imagine what good we can do if we all joined together, united as followers of Christ - M. Russell Ballard