You can't mess with a system on a s-on hox without a unlocked bootloader or s-off, so it should say relocked in any way. Even if it was s-off, making an s-off hox back to locked and s-on will proper brick the device !
That ruu will not work. The device is s-on and has a hboot of 1.72 and you can t downgrade a hox that is s-on. That ruu contains a Hboot of 1.39.
Save yourself the hassle and don't try the ruu, i already know the outcome. You have 3 choices
1: turn the phone off via the fastboot/bootloader menu, if it doesn't turn off or charge you can try the battery charge script via fastboot. Download the following file and place it in the fastboot folder on the pc and execute it with the phone in fastboot usb mode (bootloader)
It will continuously reboot the bootloader and charge the battery. It's worth to try......
2: claim your warranty at the seller (at least contact the seller about this issue because it can't be your fault at all)
3: unlock the bootloader via the HTC dev site (which may break your warranty) and flash a custom rom. But you need to get the device charged first, see #1
I would go for option #2 first