Someone left a note on the outside of my rehearsal door asking me to text them

Title. I practice in a dedicated band rehearsal space in a storage building. The agreement on the lease is that I can use this space to make as much noise as I want, any time of day or night. I was practicing drums today for a couple hours. When I went to leave, I noticed this note on the outside of my door. (Note that all the doors have white boards, it’s not like this is permanent).

Am I obligated to text them? I pay to use this rehearsal space. I’m well within my rights to make noise at any time of day or night. I get that they’re trying to record, but that’s the risk of recording in a building with other rehearsal spaces. They ain’t soundproof.