Can a person get in trouble with the law for these?

[Zog]

Situation 1, it is illegal to access another's account, Different states carry different laws about this with different penalties so you would have to check with that states statutes to determine the exact violation plus it is against twitters rules.

Situation 2, Again it depends on the particular states statutes but with what you have written you have not stated any intent to deprive friend 1 of the value of the ticket so friend 2's intent was to help friend 2 sell her ticket. Larceny or theft has to have the intent to deprive the owner of something and that wasn't friend 2's intent, friend 2's actions may not have been proper but it certainly didn't meet the criteria of a criminal act.