It seems that the best way to get around this would be to make life unbearable for the TSA agents. The politicians can't be reached.
While physically assaulting them would be very satisfying, simply freezing them out socially would properly be a better tactic, since it is impossible to arrest people for.
right now they're extra sensitive to issues that upset their constituents
Quite the opposite. Right now is the maximum time before the next election. That means they've got the longest time possible for you to forget. Any shenanigans they'd like to engage in would be safest now.
It is the maximum time, but issues are not that simple. The long-term members of Congress know the electorate are upset, and want to make nice; the new members are spoiling for a fight; the Dems are in disarray and retreat (I haven't a clue as to why), and the GOP is eagerly taking ground. It's a perfect time to push an issue with your Congress members.
While physically assaulting them would be very satisfying, simply freezing them out socially would properly be a better tactic, since it is impossible to arrest people for.