My ball python always roams his cage after swallowing his meal.
Perfectly normal behavior.
And if your worried about your UTH overheating, it should be fine if your using the right size for example you have a 20 gallon tank, use a 10-20 gallon size UTH. I don't use thermostats for my UTH for my 20 gallon because the hot spot only gets about 95 degrees which is just perfect for a hot spot for a ball python.