Use Siri from the lock screen to make the call. The person has no access to any other app on your phone this way
Check the TV for a USB plugin
Andrioid users: use Google Device Manager from another device, like a laptop or tablet, to send an alert to your phone. This tool will bypass your phone's silent setting, causing the device to ring until you find it.
iPhone users: log into iCloud on another device and selecting the Find My Phone option. You can then select Play Sound to make your silenced iPhone sing.
Putting your phone into airplane mode — which disables cell signals, Wi-Fi, Bluetooth and GPS — will make your phone easier to ignore while it's charging and will help your phone power up faster.