Nothing that some Self Adhesive Vinyl can't fix. They'll have to deal with getting it off the screen afterwards too. Want to fine me for it? Then tell me where you got the data, because I didn't consent to you having my data.
Hey I see you charged me $400 for a replacement screen? Tell me, where did you buy the targeted ad data you used to display ads on that screen? Oh, an agency that I signed terms and conditions for at some point? Shit, alright then.
I mean, fuck United tho and they will not be getting and damn money from me.