I am an RC living in Texas and never answer my door . I’ve never had them circle my house and peek in my windows before . Im not sure that is entirely legal . They usually knock a while , ring my phone then tape a notice on my door requiring me to call their office and leave my information within 48 hrs. I usually call the second they leave .I’m not a lawyer but I am not aware of any law that says you have to answer your door . I don’t.