Halachicly, anyone able to listen to a voice/sound isn’t obligated to pay for hearing it.
And we learn this from the fact that last summer a well known chashuve Rav in Washington D.C. tweeted a photo of himself and some of his talmidim watching the world series champions Washington Nats from the upper deck of his condo which had great views into nationals park to watch the heilege Dr. Anthony Fauci throw out the first pitch. It was discussed at the time that there was no inyan of ganavah since the building was clearly constructed with direct views over center field. (Note: Both the baseball field and the condo were built and owned by two of the most well known yiddeshe families in Washington).