Hide over heat pad is fine but you need a thermostat for the heat pad so just unplug it for now, you also need 2 identical hides one for hot side one for cool that are more enclosed a half log is way too open and your snake won't feel secure.

Hydrofarm thermostat is $30 on amazon
It should be replaced with a better one like a herpstat

Get a digital thermometer from Walmart called an accurite, its $12 and measures 2 temps.