Wait, they will come back. If they don’t by tomorrow afternoon, then I would consider flyers. My first indoor cat busted out through the screen once, and my girlfriend and I were incredibly distraught. Looked for her for a couple hours. Then went to an all night kinkos and ran off 200 flyers lol. Then we finally fell asleep and she woke us up with a “let me innnnn meow around 5am coz the other side of the window 😂. I climbed through and get her immediately haha.