My bike was stolen today at Bank of America at 13331 TX-249

Trek Marlin 8. I leaned it on a transparent side of a building. So while I was in a line I turned my head every minute to check if it was there. And yeah…((Once I turned my head – and it was gone. It was my aunt’s present. I feel so awful. I have no car and driver’s license. All my life I lived in Moscow where I never had to use a car. Bank has video footage, but they are not giving it to me. Police came in 2 hours and did nothing. I think it was one of the customers who saw me checking my bike every minute – and when it was the right moment he put in his truck. Guys, do I have any chance to track my bike? Can I find somehow by myself? P.S I know I was very stupid not locking it