10 litres of oil is an immense amount for the average car. The way I read your statement, your husband added 5+5 litres of oil to your car, without even previously removing the oil that was already in.
Fisrt of all, find out how much oil your car actually needs. Then drain the engine and refill with the appropriate amount, as already stated.
As in my view the possibility of engine damage isn't negligible, it'd be better to actually get the car towed to a shop, get them to change the oil and check for problems.
Please bear in mind that to get better answers you need to be more specific.